Ask a mechanical problem, the waste film recycling in the packaging machinery is a new film packaging, after cutting, then use the roller to recycle the waste film. Encounter a
It is recommended not to check the cursor, if the speed is stable, with the amount of speed (recommended to detect the angular speed of the drum) to detect, a closer speed will be smaller, you can do the implementation of the operation. If the speed is unstable, you can only use the scale. But the 2 one is marked out. The beginning and the end. A colleague detects the difference in velocity between the 2 displacements. The difference in speed means that the film is stretched and the excessive velocity is stopped directly, which means that the film has been stretched
It is suggested that displacement or velocity should be detected on the transport path of the membrane. Is a more reliable control signal. Of course, you can also detect the angular speed of the recovery drum, such as a code dial and other simple institutions.
Is it settled?. Not really! It is not recommended to use torque as parameter control here. This is a tricky amount of control. And easy to fluctuate, prone to misoperation
It's a good mechanical design problem! In principle, yes, for example, to achieve the rated torque of the motor. He'll stop by himself! What isn't that great torque? You can zoom in on the load torque
