Web Guiding Fundamentals Webinar

00:00 Introduction
03:15 Web guiding Terminology: Steering, web tracking, edge guiding, contrast guiding, line guiding, lateral registration,
04:20 What does a web guide do?
04:49 Why we need web guides? Materials are not perfect, machine are not perfect, processes are not perfect and operators are not perfect
07:34 Where do we need to install a web guide?
07:51 An example of a location for a web guide.
08:34 Terminal web guides: Used at the end of the machine. They include unwind web guide, rewind web guide, shifting stand, shifting base, uncoil/recoil
09:35 Intermediate web guides: Used within the process or the machine. They include displacement guide, positive displacement guide, pivot frame, offset pivot guide, remotelty pivoted web guide, steering guide, steering roll, end pivoted web guide, center pivoted web guide and turnbars.
10:40 Normal entry rule: The fundamental principle of web guiding
13:14: Main components of a web guiding system: Sensor, controller, guide mechanism
15:44 Unwind web guiding
18:00 Rewind web guiding
19:46 Unwind and rewind guides design and installation considerations
22:40 Offset-pivot guide or displacement guide design
25:16 Displacement guide installation considerations
27:24 Displacement guide installation mistakes
29:27 Web wrap options around a displacement guide
31:40 Steering or remotely pivoted web guide design
34:35 Steering guide installation considerations
38:00 Steering guide installation mistakes
39:08 Steering guide web wrap options
41:17 End and center pivoted web guide design and installation considerations
42:27 Actuator terminology
43:00 Hydraulic actuator
44:06 Electro-mechanical actuators
44:34 Electro-mechanical actuator terminology
46:09 Actuator sizing factors
48:10 Sensor terminology
50:54 Why web position sensing is important for web guiding
51:30 Opposing beam sensor technology, fork type edge sensor
53:16 Fiber optic sensor technology
53:53 Web guide controller
54:41 Web guide controller terminology
55:20 Common web guide controller structure: Fixed gain proportional control
57:06 Model reference adaptive controller for web guiding
57:300 Roll-2-Roll controller control structure
58:15 Open loop lateral web dynamics: Step response
59:18 Closed-loop lateral web dynamics
1:00:28 Characterisitc of a good web guiding system
1:01:21 How accurately can we guide a web?
1:03:50 Factors affecting web guiding
1:04:08 Web guiding systm design requirements
1:04:38 Web guiding fundamentals summary

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