Suction Holding Member Regulating Sheet Position During Joining

The patent applies the dynamics principle by making the suction holding member movable toward the delivery-side original material roll while maintaining dynamic control of the sheet tension. The system dynamically adjusts the holding force and position to accommodate the movement without losing precision, allowing the joining operation to proceed while maintaining accurate holding position through controlled dynamic interaction between the suction member and sheet material.

The patent implements feedback control by monitoring the holding position of the sheet on the suction holding member during movement and adjusting the suction force or position accordingly. This feedback mechanism detects changes in holding position caused by slack and compensates for them, ensuring that the joining operation maintains manufacturing precision throughout the movement process.

The patent uses an intermediary mechanism between the suction holding member and the sheet to manage the tension application. This intermediary element (such as a guiding structure or tensioning device) transfers the tension force while maintaining a stable reference point for measuring the holding position, allowing accurate joining without disrupting the measurement system's ability to track position changes.

The patent resolves the measurement conflict by introducing another dimension to the control system - either by adding a second measurement axis or by controlling tension application in a temporal sequence that separates the measurement and tensioning operations. This dimensional approach allows the system to maintain holding position measurement accuracy while still applying the necessary tension for joining accuracy.