System Overview Model 2084 Ultraviolet Hole Detector Technology Bruce T. Dobbie

System OverviewSystem Overview

Model 2084 Ultraviolet Hole Detector TechnologyBruce T. Dobbie

Mission StatementMission Statement

R.K.B. OPTO-ELECTRONICS, INC. is a designer and manufacturer of high-speed machine vision web

inspection technologies and related products. We are committed to web based material

manufacturers, converters, customers and our industry that depend on us to guarantee that

product superiority is maintained at the highest possible level. We are dedicated to increasing

customer satisfaction, continuously improving our products and services, and providing opportunities

for our employees to achieve their maximum potential.

Product: UV Hole Detector; Model 2084Product: UV Hole Detector; Model 2084

http://www.rkbopto.com/rkbproducts/2084.htmlor http://www.webinspection.us/rkb_products/literature/m2084.html

FOR MORE INFO...

TechnologyTechnology

Overview of TechnologyOverview of Technology

The Ultraviolet Hole Detection System provides the most cost effective, real time, detection and classification of holes as small as 1/16" (1.5mm) diameter in any web material that is opaque and manufactured with a minimum basis weight of 22#/3300 sq. ft (35 gsm). The web material, acting as an opaque shade, prevents the ultraviolet light from reaching the sensing heads. When a hole (void) passes by the ultraviolet light, UV will then transmit to the sensing heads where defect signal processing is performed. The sensing head technology consists of a small, water-tight enclosure which contains the main sensor and associated signal processing circuitry.


A small encapsulated window in the sensing head allows the ultraviolet light to enter into the unit through a narrow band interference filter. This filter then converts the ultraviolet light to visible light that is identified by the sensor and processed. This specialized interference filter eliminates the "noise" created by ambient light therefore eliminating any need to mask mill lighting. Outputs produced by this technology can be used for control or activation of audio/visual alarms, counters, sorters, reject gates and other types of equipment.


The Ultraviolet Hole Detection Technology has all of it's processing technologies contained in a single NEMA rated industrial enclosure. This integrated control center facilitates both installation (By eliminating several time consuming connections) and operation (by improving accessibility and maintenance in one location). Lighting and sensing technology controls, power supplies, detection threshold handling, engineering workstation w/oscilloscope and digital processing technologies are all located in this convenient free standing console.


Defect size classification are standard in all technologies and allow for the removal of larger defects considered rejectable from salable product. Additionally, the detection and monitoring of the smallest possible defects allow production the ability to monitor process machine performance, schedule proper preventative maintenance of defect causing areas and allow for production grading of material should a threshold of small defects per roll exceed a present quality limit. All defects are classified, channelized and separated into individual reporting algorithms with location in both the cross machine and machine direction, time the event took place and size of the event.


Repeating defect detection and hole size classification capabilities are included with each Ultraviolet Hole Detection System. Large hole defect identification allows for removal, splicing or patching from salable material. Small hole monitoring provides what some web material manufacturers consider valuable production analysis on overall process machinery operation and potential maintenance initiatives. Our innovative on-line performance verification system allows operators and maintenance personnel to quick verify each sensing head and related processing technologies for operational aspects while on-line.

Hole DetectorHole Detector FeaturesFeatures

State of the art Sensing Head utilizing sophisticated photocell technology and digital processing circuitry


NEMA Enclosure Housing the sensing circuitry, proprietary filter and Unique Sensitivity auto calibrate functions which ensure 100% uniform inspection of the web.


Installation areas in most cases are prior to the take up reel (commonly referred as the jumbo roll) at the end of web material processing. Most installations should be after the basis weight gauging unit as picking can occur from gauge guides.


Detection methodology of the Ultraviolet Hole Detector makes it the most efficient, durable and reliable hole detector in the world. From its unique design, the technology is also the most cost effective.


Patented lamp housing design provides for complete equalization of sensing in the cross direction as compared to competitive solutions.


Hardware based operational controls use for setup, alarm and defect location as a standard backup to CPU diagnostics which run parallel ensuring detection is never down should any software or hard disk issues arise.


Integrated control enclosures and operational control centers. NEMA rated, these enclosures contain all the operational CPU systems, electronic signal processing circuitry and related components. Both enclosures contain closed loop self contained air condition systems which maintain the operational environment at consistent temperature. The display enclosure is formatted as a stand alone unit with touchscreen functions with optional remote station integration capabilities.


Opto isolated distribution modules are standard for parallel processing of defect signals and related to PLC units


Proprietary Lamp Housing Design using specialty designed UV lamps


Environmental Sound Inspection Assembly


Premium DC Voltage Supplies


Durable and specialized Audio/Visual Alarm Systems


Integrated Signal Processing Systems housing the engineering workstation where all analog/digital processing is

performed. As part of the serviceability of RKB systems, each system comes complete with a dual

channel oscilloscope and various testing points to ensure reliable operational and serviceability is

maintained.


Military type connections ensure solid electrical specifications are maintained and environmental protection is achieved.


Meets quality initiative and ISO requirements.

Detection 24/7 without the need for operational intervention.

Eliminate the need for manual inspections.

Hole DetectorHole Detector Features ApplicationsFeatures Applications

SheetersPaper MachinesRotoLaminatorsSlittersCoatersNon-wovens

Hole DetectorHole Detector Detection ResultsDetection Results

The result is the detection of any holes

Typical InstallationTypical Installation

Typical InstallationTypical Installation

Installations at Major ManufacturersInstallations at Major Manufacturers

ReferencesReferences

For reliability; large, medium and small companies turn to RKB for their hole defect fault inspection requirements.

Related WebsitesRelated Websites

http://www.rkbopto.com– Syracuse, New York, United States

http://rkb.chinapaper.net– Suzhou, Jiangsu, China

http://www. fioproin.it– Milan, Italy

http://www.swallowmachinery.com/– Meltham, Holmfirth, United Kingdom

http://www.quality2process.com– Delden, Netherlands

http://www.splicedetector.net / www.hole-detection.com / www.webinspection.us / www.splicedetector.com– Syracuse, New York, United States

Documents

System Overview Model 2084 Ultraviolet Hole Detector Technology Bruce T. Dobbie