ブックタイトルWEB GUIDE CONTROL SYSTEMS

概要

WEB GUIDE CONTROL SYSTEMS

2Intermediate guide roller systemThis system is used where meandering of the web occurs inthe middle of a process or where problems will occur in thenext continuous process unless the web edge is controlled. ThePhotohead is also mounted at the desired web edge position, andcontrol is performed by moving the guide rollers about a pivot sothat the web edge is always located at the sensor position. Guiderollers are available in two types: an end-pivot type and a centerpivottype.Winding reel systemThis system is used to control the web edge and to wind the web.While the Photohead interlocks with the winding reel, one fixedroller is provided between them. The web is left to meander. ThePhotohead follows the edge (via a servomechanism) at all timesto control the web edge and wind the web.Intermediate guide roller systemWinding reel systemUnwinding reel systemThis system controls the feeding of an irregularly wound roll intoa process, such as slitting, printing or laminating, where uniformedge control is required. When the Photohead is mounted at thedesired web edge position, this system controls the actuator tomove the unwinding reel in the direction necessary to restorethe edge to the correct position.Unwinding reel systemThree basic EPC systemsLiteguideFeatures? Compact, self-contained design requires minimum space forinstallation.? Various sensors are provided for application requirements.? Alarm indication for malfunctions.? Center Position Control (CPC) is available.? Web position can be finely adjusted with the remote controlunit.EPC is the acronym for Edge Position Control, and is a registeredtrademark of NIRECO. It is a system that automatically controlsthe edge of a web of sheets such as paper, plastic film, foil,rubber or textiles.EPC can uniformly align unevenly rolled-up web edges. Ifconnected to a printed material inspection machine or othersimilar device, more precise inspection results can be obtained.What is EPCR?Electric EPC systemExample of use with a rewinding machine