End and center pivot guides do not displace the web, they only have the angle of rotation to reposition the web. This makes them very slow in term of response, and therefore, are not an ideal choice in web guiding options.
Unwind and rewind web guide systems are used at the start and end of the converting lines. That is why they are referred to as terminal web guides. So, what is required to properly incorporate a terminal web guide in your converting line based on web guiding fundamentals?
In a previous blog we discussed the unwind web guide structure. Typically, these are made up of a shifting stand, an actuator to move the shifting stand, a fixed sensor mounted on the fixed base of the machine between the last shifting idler roll and a fixed roll, a controller, and of course, the web. Today we look at the rewind web guide structure.
Within the group of terminal web guide systems, there are two basic types: Unwind web guide systems and rewind web guides systems.
Both systems have basically the same components, but they work differently. Let’s look at the unwind web guide structure.
Roll-2-Roll Technologies doesn't just cater to the narrow web guide applications. Our line of actuators can help you in both narrow and wide web applications at any point in your converting process that requires accurate and precise positioning of your web.
Electromechanical actuators are used when quick reactions to changes in the web position are needed. The actuator connects directly to the control unit.