Robot vision system
Another advantage that robots have is the latest visual technology. Robots with visual functions can "see" the shape or direction of the object to be picked up, and change their actions based on the results they see, for example, placing the object in the correct position before it is packaged. Visual technology also makes it easier for robots to learn and adapt to new products, and it can also be used to verify the quality of products.
“If you add a vision system, you know in advance what kind of product you need to mix, then you can make plans and train vision systems to identify these products,†explains DeRosett, “In this way, the robot A new product can be identified and reacted accordingly, but even if you do not know the mix of products in advance, you can adapt to different products flexibly and quickly.â€
Using a single-step robot with visual functions eliminates many steps in traditional applications. For example, if the user is dealing with a bag of frozen food, it may use a traditional packaging system to put it into the box. But if the package requires a certain direction for the food to be contained, then a robot can identify the direction of the bagged food on the conveyor belt, pick it up, and place it in the correct direction in the box.
"A robot with visual tracking can always know the location of a product," Musunur said. "The robot sees the object, gets its direction, and picks it up from the moving conveyor belt. This has unsurpassed flexibility. At the same time, there are no restrictions like traditional automation equipment."
The key to the success of a robot vision system is the connection to the robot motion controller. Although most vision systems can provide detailed information about the position of an object, the close connection between the vision system and the motion controller is the key to achieving 0.04 accuracy.
"In the past, this vision system was usually integrated, but recently you can find visual systems that run on separate PCs," said DeRosett. "Whether it is integrated or separate, the key element of a robot vision system is to Combined calibration procedure. Because there is no proven and easy-to-use calibration tool, people spend a lot of time and money trying to get reliable data from the vision system to the robot controller."
The design technology of robots is still evolving. For example, some systems even use only one camera to provide data for several different robots. The resolution of the decoder is also increasing. In addition, as manufacturers use better software to enhance the corresponding technology, the error of the robot is getting smaller and smaller.
"Many of the advanced technologies in software and hardware have helped us to command robots to move to more precise locations, and the latter is exactly what the packaging industry needs." DeRosett said, "For small items, this accuracy is very Important, for example, medical supplies and consumer electronics often need to be assembled first and then packaged by downstream equipment on the same production line."
Another selling point of packaging robots is reliability. Because they use servo motors instead of chains and gears, today's robots have a time-to-failure time of more than 60,000 hours, and require the first maintenance after 40,000 hours of operation.
In addition, the development of robotics technology is also a requirement for speed, although some people think that this technology has reached the limit of many applications.
“Some people have said that using a robot to reach pick-up speeds of more than 100 times per minute,†Traynor said. “But for things like biscuits that have the inertia, if you move so fast, you will definitely It throws all over the house. Now you can use a few robots to achieve faster speeds, and also have more flexibility and reliability."
“Ultimately, it is the best sport with the highest speed,†said Mark Senti, vice president and general manager of GSMA Systems. “The robot can work at a higher speed with a precise control and smooth motion. â€
Another advantage that robots have is the latest visual technology. Robots with visual functions can "see" the shape or direction of the object to be picked up, and change their actions based on the results they see, for example, placing the object in the correct position before it is packaged. Visual technology also makes it easier for robots to learn and adapt to new products, and it can also be used to verify the quality of products.
“If you add a vision system, you know in advance what kind of product you need to mix, then you can make plans and train vision systems to identify these products,†explains DeRosett, “In this way, the robot A new product can be identified and reacted accordingly, but even if you do not know the mix of products in advance, you can adapt to different products flexibly and quickly.â€
Using a single-step robot with visual functions eliminates many steps in traditional applications. For example, if the user is dealing with a bag of frozen food, it may use a traditional packaging system to put it into the box. But if the package requires a certain direction for the food to be contained, then a robot can identify the direction of the bagged food on the conveyor belt, pick it up, and place it in the correct direction in the box.
"A robot with visual tracking can always know the location of a product," Musunur said. "The robot sees the object, gets its direction, and picks it up from the moving conveyor belt. This has unsurpassed flexibility. At the same time, there are no restrictions like traditional automation equipment."
The key to the success of a robot vision system is the connection to the robot motion controller. Although most vision systems can provide detailed information about the position of an object, the close connection between the vision system and the motion controller is the key to achieving 0.04 accuracy.
"In the past, this vision system was usually integrated, but recently you can find visual systems that run on separate PCs," said DeRosett. "Whether it is integrated or separate, the key element of a robot vision system is to Combined calibration procedure. Because there is no proven and easy-to-use calibration tool, people spend a lot of time and money trying to get reliable data from the vision system to the robot controller."
The design technology of robots is still evolving. For example, some systems even use only one camera to provide data for several different robots. The resolution of the decoder is also increasing. In addition, as manufacturers use better software to enhance the corresponding technology, the error of the robot is getting smaller and smaller.
"Many of the advanced technologies in software and hardware have helped us to command robots to move to more precise locations, and the latter is exactly what the packaging industry needs." DeRosett said, "For small items, this accuracy is very Important, for example, medical supplies and consumer electronics often need to be assembled first and then packaged by downstream equipment on the same production line."
Another selling point of packaging robots is reliability. Because they use servo motors instead of chains and gears, today's robots have a time-to-failure time of more than 60,000 hours, and require the first maintenance after 40,000 hours of operation.
In addition, the development of robotics technology is also a requirement for speed, although some people think that this technology has reached the limit of many applications.
“Some people have said that using a robot to reach pick-up speeds of more than 100 times per minute,†Traynor said. “But for things like biscuits that have the inertia, if you move so fast, you will definitely It throws all over the house. Now you can use a few robots to achieve faster speeds, and also have more flexibility and reliability."
“Ultimately, it is the best sport with the highest speed,†said Mark Senti, vice president and general manager of GSMA Systems. “The robot can work at a higher speed with a precise control and smooth motion. â€
Many observers estimate that more and more robotic equipment will be integrated into the packaging line.
(to be continued)
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