A pneumatic high-speed cocoon selection device

Abstract

The present invention belongs to the technical field of intelligent equipment for processing mulberry cocoons. A pneumatic high-speed cocoon selection device comprises a conveying device, an air pressure device, an industrial camera, a defective cocoon separation device and a control system, wherein the conveying device, the air pressure device, the industrial camera and the defective cocoon separation device are electrically connected to the control system respectively; the air pressure device is arranged on the upper side of the conveying device and the air outlet faces the conveying device; the industrial camera and the defect separation device are arranged above the conveying device; the conveying device comprises a conveyor belt and a guide plate assembly, the conveyor belt has a feeding end and a discharging end; the guide plate assembly is located below the feeding end of the conveyor belt. The pneumatic high-speed cocoon selection device of the present invention can improve the sorting efficiency and identification accuracy of cocoons, prevent cocoons from bouncing up during rotation, and avoid jamming and easy adhesion between cocoons.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent equipment for processing silkworm cocoons, and in particular relates to a pneumatic high-speed cocoon selecting device. Background Art

[0002] Before the silk reeling process, it is necessary to separate intact cocoons from defective cocoons. The existing cocoon sorting equipment has good accuracy in intelligently identifying the defective characteristics of cocoons, but there is still much room for improvement in how to make the cocoons accept recognition in a regular and orderly manner. The current equipment relies on mechanical fixation to make the cocoons accept camera recognition in an orderly manner, and can only fix one cocoon at a time. Although this method can greatly improve the accuracy of camera recognition, it is inefficient. The bottom suspended air blowing cocoon selection equipment needs to blow air in the cylinder when used. When accurately selecting silkworms, only one cocoon can be blown at a time, and the cocoon selection speed is slow. The conveyor belt cocoon selection equipment can identify and select cocoons in large quantities, but on the one hand, the cocoon movement trajectory is unstable, resulting in the camera sampling cannot guarantee that all directions of the cocoon can be captured 100%; on the other hand, it has unreasonable equipment structure design, which makes the cocoons easy to get stuck and the cocoons are easy to stick together.

[0003] Analysis shows that the main reason for this problem is that most of the existing cocoon sorting equipment uses a direct device to control the movement of the cocoons. During small-scale sorting, the equipment that mechanically fixes the cocoons uses a stable clamping method on all sides, which can successfully sample without damaging the cocoons, but clamping one by one is not in line with industrial development. During large-scale sorting, the conveyor-type cocoon sorting equipment uses a placement-type bottom weak clamping method, which can achieve large-scale transmission, but its bottom is made of plastic material, and the cocoons have a certain elasticity. When the cocoons are rotated, it is easy for the cocoons to bounce up or directly fall off the conveyor belt.

[0004] Therefore, according to the characteristics of the cocoons themselves, the present invention invents a cocoon conveying device to meet the cocoon conveying requirements. At the same time, a camera is used to complete the all-round image acquisition of the cocoons, and the cocoons are sorted through the cooperation of the defective cocoon separation device to prevent the cocoons from bouncing up during rotation and avoid jamming and easy adhesion between the cocoons. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned technical problems and provide a pneumatic high-speed cocoon sorting device to sort silk cocoons, so as to solve the problem of quality inspection and sorting of silk cocoons one by one, prevent silk cocoons from bouncing when rotating, avoid jamming and easy adhesion between silk cocoons, and improve the sorting efficiency and recognition accuracy of silk cocoons.

[0006] In order to achieve the above purpose, the present invention adopts the following technical means:

[0007] A pneumatic high-speed cocoon selection device comprises a conveying device, a wind pressure device, an industrial camera, a defective cocoon separation device and a control system, wherein the conveying device, the wind pressure device, the industrial camera and the defective cocoon separation device are electrically connected to the control system respectively; the wind pressure device is arranged above the conveying device and the air outlet faces the conveying device; the industrial camera and the defect separation device are arranged above the conveying device; the conveying device comprises a conveyor belt and a guide plate assembly, the conveyor belt has a feeding end and a discharging end; the guide plate assembly is located below the feeding end of the conveyor belt; the guide plate assembly comprises a fixed frame and a guide plate connected to the fixed frame, the fixed frame is a rectangular frame, the fixed frame runs through the conveyor belt, and the fixed frame is perpendicular to the conveying direction of the conveyor belt, a plurality of the guide plates are evenly fixed on the fixed frame, the guide plates are located on the upper end surface of the conveyor belt and are evenly distributed along the length direction of the conveyor belt, and the guide plates comprise mutually connected partitions and inclined baffles; the partition is perpendicular to the fixed frame, and the inclined baffle is inclined toward one side of the wind pressure device and forms an angle with the conveying direction of the conveyor belt.

[0008] As a further improvement of the present invention, the wind pressure device includes an air blower, which is provided with an air blowing nozzle opening toward the inclined baffle. The air blowing nozzle outputs airflow and the airflow direction is perpendicular to the inclined baffle. The cocoons to be sorted rotate under the action of the conveyor belt and the airflow.

[0009] As a further improvement of the present invention, the spacing distance between the guide plate and the conveyor belt is 0.5-1.0 cm, and the spacing between two adjacent guide plates is 2.5-3.5 cm.

[0010] As a further improvement of the present invention, the angle formed by the inclined baffle and the conveying direction of the conveyor belt is in the range of 25°-40°.

[0011] As a further improvement of the present invention, the pneumatic high-speed cocoon selection device further comprises a front cocoon container and a rear cocoon container, wherein the front cocoon container is arranged at the unloading end of the conveyor belt, and the rear cocoon container is arranged at the discharging end of the conveyor belt.

[0012] As a further improvement of the present invention, the industrial camera takes multiple shots of the silk cocoons to be sorted in the guide plate, and sends the captured images to the control system.

[0013] As a further improvement of the present invention, side baffles are fixedly installed on both sides of the transmission belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The pneumatic high-speed cocoon sorting device of the present invention can perform quality inspection and sorting of silk cocoons in large quantities, can prevent silk cocoons from bouncing up when rotating, avoid jamming and easy adhesion between silk cocoons, and improve the sorting efficiency and recognition accuracy of silk cocoons. By setting a conveyor belt type conveying device, silk cocoons are automatically arranged along the length direction of the guide plates when they fall between two guide plates. During the conveying of silk cocoons, the silk cocoons can be dispersed and positioned to prevent the cocoons from sticking. In addition, during the operation, the silk cocoons form a lateral friction force along the axial direction of the silk cocoons with the inclined baffle plate, so that the silk cocoons have a tendency to rotate. Under the synchronous action of the wind pressure device, the industrial camera samples while the silk cocoons are automatically collected in all directions. By controlling the speed of the conveyor belt and the wind force of the wind pressure device to control the rotation speed of the cocoon during transmission, each cocoon can be rotated at least 360° during the period of passing through the guide plate, so that each cocoon can be fully photographed and scanned, eliminating the generation of detection blind spots, and the detection of each cocoon can reach 100% accuracy. In addition, the wind force blown by the wind pressure device can also prevent the cocoon from bouncing when rotating, so as to achieve controllable movement; after the industrial camera collects the image, the control system performs image processing, and realizes the automatic detection of large quantities of cocoons. The cocoons continue to move forward with the conveyor belt, and the defective cocoons will be separated by the defective cocoon separation device. The present invention can provide more acceleration space for industrial production.

[0016] 2. The pneumatic high-speed cocoon selection device of the present invention is provided with a wind pressure device. Under the action of stable wind pressure, the cocoons can move stably, which greatly speeds up the transmission speed of the cocoons and provides more acceleration space for large-scale production. At the same time, the all-round video sampling and analysis under this action can greatly improve the recognition accuracy of the computer algorithm. At the same time, the wind pressure device can also blow a phase-varying airflow to the inclined baffle to make the cocoons receive uneven wind force. The uneven force can separate the cocoons from each other, which can solve the problem of cocoon jamming and easy adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a pneumatic high-speed cocoon selection device of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the guide plate assembly of the present invention;

[0019] Figure 3 It is a circuit block diagram of a pneumatic high-speed cocoon selection device of the present invention;

[0020] Among them, the markings in the attached drawings are: 1-industrial camera; 2-defective cocoon separation device; 3-control system; 4-conveyor belt; 5-fixed frame; 6-material guide plate; 7-partition; 8-inclined baffle; 9-air blower; 10-air blowing nozzle; 11-front cocoon container; 12-rear cocoon container; 13-side baffle; 14-conveying device; 15-wind pressure device. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the specific embodiments of the present invention are only for the purpose of more clearly describing the technical solution and cannot be used as a limitation on the protection scope of the present invention.

[0022] See also Figure 1-Figure 3 A pneumatic high-speed cocoon selection device comprises a conveying device 14, an air pressure device 15, an industrial camera 1, a defective cocoon separation device 2 and a control system 3, wherein the conveying device 14, the air pressure device 15, the industrial camera 1 and the defective cocoon separation device 2 are electrically connected to the control system 3 respectively; the air pressure device 15 is arranged on the upper side of the conveying device 14 and the air outlet faces the conveying device 14; the industrial camera 1 and the defect separation device are arranged above the conveying device 14; the conveying device 14 comprises a conveyor belt 4 and a guide plate assembly, wherein the conveyor belt 4 has a feeding end and a discharging end; the conveyor belt 4 also has a rotating motor, and the guide plate assembly is located below the feeding end of the conveyor belt 4; the guide plate assembly comprises a fixing frame 5 and a guide plate 6 connected to the fixing frame 5, wherein the fixing frame 5 is a rectangular frame, and the fixing frame 5 It runs through the conveyor belt 4, and the fixed frame 5 is perpendicular to the conveying direction of the conveyor belt 4. A plurality of guide plates 6 are evenly fixed on the fixed frame 5. The guide plates 6 are located on the upper end surface of the conveyor belt 4 and are evenly distributed along the length direction of the conveyor belt 4. The guide plates 6 include mutually connected partitions 7 and inclined baffles 8; the partitions 7 are perpendicular to the fixed frame 5, and the inclined baffles 8 are inclined toward the side of the wind pressure device 15 and form an angle with the conveying direction of the conveyor belt 4.

[0023] The present invention provides a conveying device 14 in the form of a conveyor belt 4. When the cocoons fall between the two guide plates 6, they are automatically arranged along the length direction of the guide plates 6. During the cocoon conveying process, the cocoons can be dispersed and positioned to prevent the cocoons from sticking together. In addition, during the operation, the cocoons form a lateral friction force along the axial direction of the cocoons with the inclined baffle 8, so that the cocoons tend to rotate. Under the synchronous action of the wind pressure device 15, the industrial camera 1 samples while the cocoons rotate in all directions. The rotation speed of the cocoons during transmission is controlled by controlling the speed of the conveyor belt 4 and the wind force of the wind pressure device 15. , so that each cocoon rotates at least 360° during the period of passing through the guide plate 6, so that each cocoon can be fully scanned, eliminating the generation of detection blind spots, and the detection of each cocoon can reach 100% accuracy, and the wind blown by the wind pressure device 15 can also prevent the cocoon from bouncing when rotating, so as to achieve controllable movement; after the industrial camera 1 collects the image, the control system 3 performs image processing, and realizes the automatic detection of large quantities of cocoons. The cocoons continue to move forward with the conveyor belt 4, and the defective cocoons will be separated by the defective cocoon separation device 2.

[0024] As a further improvement of the present invention, the wind pressure device 15 includes an air blower 9, and the air blower 9 is provided with an air blowing nozzle 10 with an opening toward the inclined baffle 8. The air blowing nozzle 10 outputs airflow and the airflow direction is perpendicular to the inclined baffle 8, so that the airflow presses the cocoons down to prevent the cocoons from bouncing up. The cocoons to be sorted rotate under the action of the conveyor belt 4 and the airflow and are transmitted forward along the guide plate. Under the action of stable wind pressure, the cocoons can move stably, which greatly speeds up the transmission speed of the cocoons and provides more acceleration space for large-scale production. At the same time, the all-round video sampling and analysis under this action can greatly improve the recognition accuracy of the computer algorithm. In addition, the wind pressure device 15 can also blow a variable phase airflow to the inclined baffle 8 to make the cocoons receive uneven wind force. The uneven force can separate the cocoons from each other. Through specific regulation, the problem of jamming and easy bonding between cocoons can also be solved in theory.

[0025] The spacing between the guide plate 6 and the conveyor belt 4 is smaller than the diameter of the cocoon. The present invention designs the spacing to be 0.5-1.0 cm, so that the cocoon contacts the inclined baffle 8 during the forward movement, and the force exerted by the inclined baffle 8 on the cocoon is roughly located in the middle of the cocoon. The spacing between two adjacent guide plates 6 is 2.5-3.5 cm, which can be adjusted according to the quality of the silkworm. The distance roughly matches the length of the cocoon. On the one hand, since the cocoon is elliptical as a whole, when the cocoon falls between the two guide plates 6, the cocoon will automatically be arranged along the length direction of the guide plates 6, and the multiple cocoons bonded together will be initially separated. On the other hand, the uniform and orderly forward movement of the cocoon facilitates the industrial camera 1 to perform all-round scanning and photographing of the cocoon.

[0026] The inclination angle of the inclined baffle 8 is adjusted according to the production process. In this embodiment, the angle formed by the inclined baffle 8 and the conveying direction of the conveyor belt 4 is in the range of 25°-40°, so that the inclined baffle 8 can always provide a stable limiting effect for the cocoons on the conveyor belt 4 and keep the cocoons moving forward.

[0027] The pneumatic high-speed cocoon selection device further comprises a front cocoon container 11 and a rear cocoon container 12 . The front cocoon container 11 is arranged at a discharge end above one side of the conveyor belt 4 , and the rear cocoon container 12 is arranged at a discharge end below the other side of the conveyor belt 4 .

[0028] The industrial camera 1 is a high-frequency industrial camera 1, which is used to take multiple shots of the cocoons to be sorted in the guide plate 6, and send the captured images to the control system 3. The defective cocoon separation device 2 can be specifically a mechanical claw, and the control system 3 is connected to a mechanical gripper. When the control system 3 identifies the cocoon as a defective cocoon, the mechanical gripper grabs the cocoon and places it in the defective product area.

[0029] Side baffles 13 are fixedly installed on both sides of the transmission belt. The arrangement of the side baffles 13 can effectively prevent the cocoons on the conveyor belt 4 from sliding off, thereby improving the transmission efficiency.

[0030] The working principle of the pneumatic high-speed cocoon selection device of the present invention is as follows: when the cocoons fall into the guide plate 6, they hit the inclined baffle 8, forming a lateral friction force along the axial direction of the cocoons, causing the cocoons to have a tendency to rotate, and then a downward wind pressure with a certain inclination angle is applied to the cocoons and the inclined plate above the conveyor belt 4, so that the cocoons can rotate in all directions while the industrial camera 1 samples, and at the same time, the oblique downward wind pressure can stabilize the cocoons, so that the cocoons move forward along the conveyor belt 4 to prevent the cocoons from bouncing, and the additional inclined baffle 8 and wind pressure device 15 enable the cocoons to move in a controllable manner, which can provide more acceleration space for industrial production, and solve the problem of low cocoon transportation efficiency and identification efficiency when large-scale mechanized intelligent screening of cocoons. In addition, the wind pressure device 15 of the present invention can also cause the cocoons to be subjected to uneven wind force, and the uneven force can separate the cocoons from each other. Through the preset wind pressure regulation, the problem of jamming and easy adhesion between cocoons can also be solved.

[0031] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A pneumatic high-speed cocoon selection device, characterized in that: It includes a conveying device, an air pressure device, an industrial camera, a defective cocoon separation device and a control system, wherein the conveying device, the air pressure device, the industrial camera and the defective cocoon separation device are electrically connected to the control system respectively; the air pressure device is arranged on the upper side of the conveying device and the air outlet faces the conveying device; the industrial camera and the defect separation device are arranged above the conveying device; the conveying device includes a conveyor belt and a guide plate assembly, the conveyor belt has a feeding end and a discharging end; the guide plate assembly is located below the feeding end of the conveyor belt; the guide plate assembly includes a fixed frame and a guide plate connected to the fixed frame, the fixed frame is a rectangular frame, the fixed frame passes through the conveyor belt, and the fixed frame is connected to the conveying direction of the conveyor belt. The fixed frame is vertical, and a plurality of guide plates are evenly fixed on the fixed frame, the guide plates are located on the upper end surface of the conveyor belt and are evenly distributed along the length direction of the conveyor belt, the guide plates include partitions and inclined baffles that are connected to each other; the partitions are perpendicular to the fixed frame, and the inclined baffles are inclined toward one side of the wind pressure device and form an angle with the conveying direction of the conveyor belt; the wind pressure device includes an air blower, and the air blower is provided with an air blowing nozzle with an opening toward the inclined baffle, the air blowing nozzle outputs airflow and the airflow direction is perpendicular to the inclined baffle, and the cocoons to be sorted rotate under the action of the conveyor belt and the airflow; the industrial camera takes multiple shots of the cocoons to be sorted in the guide plate, and sends the captured images to the control system.

2. The pneumatic high-speed cocoon selecting device according to claim 1, characterized in that: The spacing between the guide plate and the conveyor belt is 0.5-1.0 cm, and the spacing between two adjacent guide plates is 2.5-3.5 cm.

3. The pneumatic high-speed cocoon selecting device according to claim 1, characterized in that: The angle formed by the inclined baffle and the conveying direction of the conveyor belt is in the range of 25°-40°.

4. The pneumatic high-speed cocoon selecting device according to claim 1, characterized in that: It also comprises a front cocoon container and a rear cocoon container, wherein the front cocoon container is arranged at the unloading end of the conveyor belt, and the rear cocoon container is arranged at the discharging end of the conveyor belt.

5. The pneumatic high-speed cocoon selecting device according to claim 1, characterized in that: Side baffles are fixedly installed on both sides of the conveyor belt.

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