CN211587581U - Intelligent screening system - Google Patents
Intelligent screening system Download PDFInfo
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- CN211587581U CN211587581U CN202020139053.2U CN202020139053U CN211587581U CN 211587581 U CN211587581 U CN 211587581U CN 202020139053 U CN202020139053 U CN 202020139053U CN 211587581 U CN211587581 U CN 211587581U
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Abstract
The utility model discloses an intelligence screening system, including conveyer belt, camera, light source, PLC, computer, conveyer belt controller, first position sensor, second position sensor, first push rod, second push rod, third push rod, fourth push rod, the first basket of accomodating, the basket is accomodate to the second, the basket is accomodate to the third, the basket is accomodate to the fourth that is used for carrying the work piece removal, PLC with the computer links to each other. The utility model discloses can realize detecting, screening, rejecting to the work piece of different sign mistake categories, equipment is simple, is convenient for control and expansion, and can realize not stopping the line detection, screening, reject, and efficiency promotes, and the degree of accuracy improves with the reliability. The RS-422 interface is adopted for communication, so that the anti-interference capability is strong, and the transmission efficiency is high. The photoelectric sensor has strong universality, small volume, light weight, long service life and high detection accuracy.
Description
Technical Field
The utility model relates to a machine vision technical field specifically is an intelligent screening system.
Background
Machine vision is a multidisciplinary cross-over field, which integrates knowledge in multiple fields such as optical engineering, electronic signal processing, mode recognition, artificial intelligence, mechanical engineering, software engineering and the like. Machine vision systems are generally composed of light sources, lenses, cameras, image storage, monitors, and computer systems. The light source provides enough illumination for the vision system, the lens images a target in a detected scene onto an imaging surface of a vision sensor (namely, a camera device), the image storage body is responsible for converting an electric signal into a digital image, namely, the brightness of each pixel point is converted into gray level data and stored into one or more images, and the computer system is responsible for processing, analyzing, judging and identifying the images and finally giving a detection result.
Nowadays, China is becoming one of the most active areas in the development of machine vision in the world, and the application range covers various industries of national economy such as industry, agriculture, medicine, military, aerospace, weather, astronomy, public security, traffic, safety, scientific research and the like. The important reason is that China has become the processing center of the global manufacturing industry, and the processing of high-demand parts and corresponding advanced production lines thereof make many machine vision systems and application experiences with international advanced level enter China.
In the visual detection process, devices such as marking, rejecting and the like are combined to form an identification detection screening system based on visual detection, so that unqualified products can be easily screened and cleaned. However, different types of marking errors may require different rework procedures and processing methods, for example, if the label is "no-marking character", the subsequent processing only needs to mark the label again, and if the label is "gray scale error", the label may need to be rejected for marking again. In the prior art, when the identification is detected, comparison and distinguishing which identification error belongs to are not needed, and as long as the detected identification does not accord with the preset value, unqualified identification is judged for removing, and then scrapping is carried out uniformly, so that waste is caused; in some cases, the scrapped mark which can be used or can be changed into a qualified scrapped mark through simple subsequent processing needs to be selected, and secondary detection, classification and reprocessing are performed, so that the mode is low in efficiency.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art, the utility model provides an intelligence screening system realizes the differentiation of different sign mistake categories, rejects respectively, accomodates respectively to subsequent processing solves the relatively extravagant, the not high enough scheduling problem of efficiency that current sign based on visual detection detects the screening technique existence. The utility model discloses an improvement based on hardware structure, its software part adopts current mature technique alright realize, and the event does not explain the software part again in detail.
The utility model provides a technical scheme that above-mentioned problem adopted is:
an intelligent screening system comprises a conveyor belt, a camera, a light source, a PLC, a computer, a conveyor belt controller, a first position sensor, a second position sensor, a first push rod, a second push rod, a third push rod, a fourth push rod, a first storage basket, a second storage basket, a third storage basket and a fourth storage basket, wherein the conveyor belt is used for carrying workpieces to move;
the conveyor belt controller is used for controlling the working beat of the conveyor belt according to the instruction of the PLC;
the light source is arranged above the workpiece, is used for providing illumination for the camera and is connected with the PLC;
the camera is arranged above the workpiece and used for acquiring identification data of the workpiece and transmitting the acquired identification data to the computer, and the camera is connected with the PLC;
a first position sensor and a second position sensor are arranged on one side of the conveyor belt, are used for sensing and detecting the position of a workpiece on the conveyor belt and are respectively connected with the PLC;
the two sides of the conveyor belt at the first position sensor are provided with a first push rod and a third push rod which are arranged in a horizontal opposite manner, the two sides of the conveyor belt at the second position sensor are provided with a second push rod and a fourth push rod which are arranged in a horizontal opposite manner, the rod ends of the first push rod, the second push rod, the third push rod and the fourth push rod face towards the workpiece, the positions of the rod ends of the first push rod, the second push rod, the third push rod and the fourth push rod are higher than the upper surface of the conveyor belt, and the first push rod, the second push rod, the;
a first storage basket, a second storage basket, a third storage basket and a fourth storage basket are respectively arranged below the first push rod, the second push rod, the third push rod and the fourth push rod.
The first basket of accomodating, the basket is accomodate to the second, the basket is accomodate to the third, the fourth is accomodate the basket and is used for collecting the wrong first of sign of different sign mistake categories respectively, sign mistake two, sign mistake three, the unqualified work piece of sign mistake four (for example, sign mistake one, sign mistake two, sign mistake three, sign mistake four corresponds the sign mistake of four kinds of difference of "no sign character", "sign character is incomplete", "sign grey level mistake", "sign position mistake" respectively), when first position sensor senses conveyer belt delivery work piece and arrives, the identification data of work piece is gathered to the camera, and the identification data who will gather convey the computer to, the computer is to the identification data whether have the mistake to carry out analysis and judgement: if the data are identified, the system operates normally; if the first mark is wrong, the computer interacts with the PLC, and the PLC controls the third push rod to push the workpiece into the first containing basket; if the identification is wrong three, the computer interacts with the PLC, and the PLC controls the first push rod to push the workpiece into a third containing basket; if the second identification is wrong, the computer interacts with the PLC, when the workpiece reaches the position of the second position sensor, the second position sensor feeds back a signal to the PLC, and the PLC controls the fourth push rod to push the workpiece into the second storage basket; if the identification error is four, the computer interacts with the PLC, when the workpiece reaches the position of the second position sensor, the second position sensor feeds back a signal to the PLC, and the PLC controls the second push rod to push the workpiece into the fourth storage basket.
Therefore, the detection, screening and elimination of workpieces of different identification error categories are realized, the equipment is simple, the control and expansion are convenient, the non-stop detection, screening and elimination can be realized, the waste is reduced, the efficiency is improved, the PLC is connected with the computer, the automation degree of the system is improved, and the accuracy and the reliability are improved.
Preferably, the first push rod, the second push rod, the third push rod and the fourth push rod are all electric drive push rods. The electrically driven push rod facilitates control of speed, thrust, etc.
Preferably, the rod ends of the first push rod, the second push rod, the third push rod and the fourth push rod are all provided with rubber buffer sleeves. The rubber buffer sleeve can reduce the impact of the push rod on the workpiece, increase the protection and conveniently prevent the workpiece from being damaged.
Preferably, the first push rod, the second push rod, the third push rod and the fourth push rod are all arranged along the direction orthogonal to the conveying belt. The orthogonal arrangement enables the push rod to be aligned to the workpiece more accurately, reduces false operation and improves the effectiveness of elimination.
Preferably, the first position sensor and the second position sensor are both photoelectric sensors. The photoelectric sensor has less limitation on the detected object and strong universality, and the non-contact detection cannot damage the detected object and the sensor. Small size, light weight, long service life and high detection accuracy.
Preferably, the PLC is connected with the computer through an RS-422 interface. RS-422 adopts full duplex communication, and the interference killing feature is strong, and transmission efficiency is high. The stability and the detection precision of the system are improved.
Compared with the prior art, the utility model, following beneficial effect has:
(1) the utility model discloses can realize detecting, screening, rejecting to the work piece of different sign mistake categories, equipment is simple, is convenient for control and expansion, and can realize not stopping the line detection, screening, rejecting, has reduced the waste, and efficiency promotes, and PLC links to each other with the computer, makes the degree of automation of system improve, and the degree of accuracy improves with the reliability.
(2) The utility model discloses the orthogonal arranges the more accurate work piece of aiming at of messenger's push rod, reduces the malfunction, has improved the validity of rejecting. RS-422 adopts full duplex communication, and the interference killing feature is strong, and transmission efficiency is high. The stability and the detection precision of the system are improved.
(3) The rubber buffer sleeve can reduce the impact of the push rod on the workpiece, increase the protection and conveniently prevent the workpiece from being damaged. The photoelectric sensor has less limitation on the detected object, strong universality, small volume, light weight, long service life and high detection accuracy, and the non-contact detection cannot damage the detected object and the sensor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numbers and corresponding part names in the drawings: 1. conveyor belt, 3, camera, 4, light source, 5, PLC, 6, computer, 7, conveyor belt controller, 11, first position sensor, 12, second position sensor, 21, first push rod, 22, second push rod, 23, third push rod, 24, fourth push rod, 31, first storage basket, 32, second storage basket, 33, third storage basket, 34, fourth storage basket.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 1, an intelligent screening system comprises a conveyor belt 1 for carrying workpieces to move, a camera 3, a light source 4, a PLC5, a computer 6, a conveyor belt controller 7, a first position sensor 11, a second position sensor 12, a first push rod 21, a second push rod 22, a third push rod 23, a fourth push rod 24, a first storage basket 31, a second storage basket 32, a third storage basket 33 and a fourth storage basket 34, wherein the PLC5 is connected with the computer 6;
the conveyor belt controller 7 is used for controlling the working beat of the conveyor belt 1 according to the instruction of the PLC 5;
the light source 4 is arranged above the workpiece, is used for providing illumination for the camera 3 and is connected with the PLC 5;
the camera 3 is arranged above the workpiece and used for acquiring identification data of the workpiece and transmitting the acquired identification data to the computer 6, and the camera 3 is connected with the PLC 5;
a first position sensor 11 and a second position sensor 12 are arranged on one side of the conveyor belt 1, and the first position sensor 11 and the second position sensor 12 are used for sensing and detecting the position of a workpiece on the conveyor belt 1 and are respectively connected with a PLC 5;
a first push rod 21 and a third push rod 23 which are arranged in a horizontal opposite mode are arranged on two sides of the conveyor belt 1 at the position of the first position sensor 11, a second push rod 22 and a fourth push rod 24 which are arranged in a horizontal opposite mode are arranged on two sides of the conveyor belt 1 at the position of the second position sensor 12, rod ends of the first push rod 21, the second push rod 22, the third push rod 23 and the fourth push rod 24 face a workpiece, the positions of the rod ends are higher than the upper surface of the conveyor belt 1, and the first push rod 21, the second push rod 22, the third push rod 23 and the fourth push rod 24 are connected with a PLC5 respectively;
a first storage basket 31, a second storage basket 32, a third storage basket 33, and a fourth storage basket 34 are provided below the first pusher 21, the second pusher 22, the third pusher 23, and the fourth pusher 24, respectively.
The first storage basket 31, the second storage basket 32, the third storage basket 33 and the fourth storage basket 34 are respectively used for collecting unqualified workpieces with different identification error categories, namely a first identification error, a second identification error, a third identification error and a fourth identification error (for example, the first identification error, the second identification error, the third identification error and the fourth identification error respectively correspond to four different types of identification errors, namely 'no identification character', 'incomplete identification character', 'gray level error' and 'position error'), when the first position sensor 11 senses that the conveying workpieces conveyed by the conveying belt 1 arrive, the camera 3 collects identification data of the workpieces and transmits the collected identification data to the computer 6, and the computer 6 analyzes and judges whether the identification data are wrong: if the data are identified, the system operates normally; if the identification error one occurs, the computer 6 interacts with the PLC5, and the PLC5 controls the third push rod 23 to push the workpiece into the first receiving basket 31; if the identification error is three, the computer 6 interacts with the PLC5, and the PLC5 controls the first push rod 21 to push the workpiece into the third receiving basket 33; if the second identification error occurs, the computer 6 interacts with the PLC5, when the workpiece reaches the position of the second position sensor 12, the second position sensor 12 feeds back a signal to the PLC5, and the PLC5 controls the fourth push rod 23 to push the workpiece into the second receiving basket 32; if the identification error is four, the computer 6 interacts with the PLC5, and when the workpiece reaches the position of the second position sensor 12, the second position sensor 12 feeds back a signal to the PLC5, and the PLC5 controls the second push rod 22 to push the workpiece into the fourth receiving basket 34.
Therefore, the detection, screening and elimination of workpieces of different identification error categories are realized, the equipment is simple, the control and expansion are convenient, the non-stop detection, screening and elimination can be realized, the waste is reduced, the efficiency is improved, the PLC5 is connected with the computer 6, the automation degree of the system is improved, and the accuracy and the reliability are improved.
Preferably, the first push rod 21, the second push rod 22, the third push rod 23 and the fourth push rod 24 are all electrically driven push rods. The electrically driven push rod facilitates control of speed, thrust, etc.
Preferably, the first push rod 21, the second push rod 22, the third push rod 23 and the fourth push rod 24 are all arranged along the direction orthogonal to the conveyor belt 1. The orthogonal arrangement enables the push rod to be aligned to the workpiece more accurately, reduces false operation and improves the effectiveness of elimination.
Preferably, the PLC5 interfaces with the computer 6 via RS-422. RS-422 adopts full duplex communication, and the interference killing feature is strong, and transmission efficiency is high. The stability and the detection precision of the system are improved.
The embodiment has the advantages of high screening efficiency and high detection precision.
Example 2
As a further optimization of embodiment 1, this embodiment includes all the technical features of embodiment 1, and in addition, this embodiment further includes the following technical features:
preferably, rubber buffer sleeves are arranged at the rod ends of the first push rod 21, the second push rod 22, the third push rod 23 and the fourth push rod 24. The rubber buffer sleeve can reduce the impact of the push rod on the workpiece, increase the protection and conveniently prevent the workpiece from being damaged.
Preferably, the first position sensor 11 and the second position sensor 12 are both photosensors. The photoelectric sensor has less limitation on the detected object and strong universality, and the non-contact detection cannot damage the detected object and the sensor. Small size, light weight, long service life and high detection accuracy.
Compared with embodiment 1, the embodiment also has the advantages of workpiece damage prevention and long service life.
As described above, the present invention can be preferably realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (6)
1. The intelligent screening system is characterized by comprising a conveyor belt (1) for carrying workpieces to move, a camera (3), a light source (4), a PLC (5), a computer (6), a conveyor belt controller (7), a first position sensor (11), a second position sensor (12), a first push rod (21), a second push rod (22), a third push rod (23), a fourth push rod (24), a first storage basket (31), a second storage basket (32), a third storage basket (33) and a fourth storage basket (34), wherein the PLC (5) is connected with the computer (6);
the conveyor belt controller (7) is used for controlling the working beat of the conveyor belt (1) according to the instruction of the PLC (5);
the light source (4) is arranged above the workpiece, is used for providing illumination for the camera (3), and is connected with the PLC (5);
the camera (3) is arranged above the workpiece and used for acquiring identification data of the workpiece and transmitting the acquired identification data to the computer (6), and the camera (3) is connected with the PLC (5);
a first position sensor (11) and a second position sensor (12) are arranged on one side of the conveyor belt (1), the first position sensor (11) and the second position sensor (12) are used for sensing and detecting the position of a workpiece on the conveyor belt (1) and are respectively connected with the PLC (5);
two sides of the conveyor belt (1) at the position of the first position sensor (11) are provided with a first push rod (21) and a third push rod (23) which are horizontally arranged in an opposite manner, two sides of the conveyor belt (1) at the position of the second position sensor (12) are provided with a second push rod (22) and a fourth push rod (24) which are horizontally arranged in an opposite manner, rod ends of the first push rod (21), the second push rod (22), the third push rod (23) and the fourth push rod (24) face towards a workpiece, the positions of the rod ends are higher than the upper surface of the conveyor belt (1), and the first push rod (21), the second push rod (22), the third push rod (23) and the fourth push rod (24) are respectively connected with the PLC;
a first storage basket (31), a second storage basket (32), a third storage basket (33) and a fourth storage basket (34) are respectively arranged below the first push rod (21), the second push rod (22), the third push rod (23) and the fourth push rod (24).
2. An intelligent screening system according to claim 1, wherein the first push rod (21), the second push rod (22), the third push rod (23) and the fourth push rod (24) are all electrically driven push rods.
3. An intelligent screening system according to claim 1, wherein the rod ends of the first push rod (21), the second push rod (22), the third push rod (23) and the fourth push rod (24) are provided with rubber buffer sleeves.
4. An intelligent screening system according to claim 1, wherein the first push bar (21), the second push bar (22), the third push bar (23) and the fourth push bar (24) are arranged orthogonally to the conveyor belt (1).
5. An intelligent screening system according to claim 1, wherein the first position sensor (11) and the second position sensor (12) are both photoelectric sensors.
6. An intelligent screening system according to claim 1, wherein the PLC (5) interfaces with the computer (6) via RS-422.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020139053.2U CN211587581U (en) | 2020-01-21 | 2020-01-21 | Intelligent screening system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020139053.2U CN211587581U (en) | 2020-01-21 | 2020-01-21 | Intelligent screening system |
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| CN211587581U true CN211587581U (en) | 2020-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011744A (en) * | 2021-11-01 | 2022-02-08 | 襄阳润欣圆锻造有限公司 | Automatic material section sorting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011744A (en) * | 2021-11-01 | 2022-02-08 | 襄阳润欣圆锻造有限公司 | Automatic material section sorting device |
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