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Sealing windows
Intelligent sensing
Gas spring lubrication
Sounding out theseabed
New laminating brochure
A new lightweight and compact fast response automatic dispensing valveis now available that is able to control the flow of dispensed material indirect proportion to the speed of the robot to which it is attached.
This facility is particularly useful in automated gasketing applicationswhere a constant bead width is usually required to be maintained
regardless of any variations in the linearspeed of the robot, or in other cases,where variations of the bead size isneeded despite a constant speed ofapplication by the robot.
The new valve, which is also designed tohandle abrasive materials makes use oflinear motor technology coupled to a pneumaticamplifier and communicates with the robot via asimple 0 - 10 volt analogue signal, resulting inprecisely controlled and highly accurateadjustable flow rates of up to 1 litre/minute.
New proportional control valve
Newly available from the Hilger u. Kern / DopagGroup is a brand new brochure that showsin some detail all of the systems nowavailable for metering, mixing and dispensingboth solvent free and solvent based adhesivesin the flexible packaging industry.
Gear pump, piston pump and flow meter systemsare all covered in the form of ELDO-MIX, VARIO-MIX and LADO-MIX systems.
Copies are available from your local DOPAG office or distributor, or they may be downloaded on-line by visiting: www.dopag.com/?rub=194
Elvis lives!Hilger u. Kern / Dopag Group
Application stories from around the world
InsideIssue No.15
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gear pump, the rotational speed of whichis closely controlled in order to preciselymanage the flow of sealant into the windowframe. The pump module is located directlyabove the robot station on an overheadgantry in close proximity to the robot.
A material pressure regulator fitted betweenthe two pumps ensures a smooth flow ofmaterial at the correct pressure.
Finally, a DOPAG membrane typedispensing valve, mounted onto the robotand fitted with a special application nozzledispenses the metered silicone.
1a hunkeler’s new facility should ensurethat their products are fit for a palace formany more years.
When Swiss window manufacturer1a hunkeler needed to increase
production and modernise the fabricationfacilities of their patented TOP-WIN® rangeof windows, they turned to DOPAG forassistance.
The TOP-WIN® range of windows has seta new milestone in window constructionachieving up to 30% increase in lightpenetration whilst simultaneouslyincreasing thermal and acoustic insulationproperties.
As part of this development and tomaximise efficiency, 1a hunkeler chose to automate the process that involvedapplying a bead of sealant between theinsulated glass and the frame of eachwindow.
The semi-automated procedure involvesmanually placing the window frames ontoa robot table where a bar code readerautomatically recognises the type of frame. Double-sided adhesive tape is then applied, after which the frame istransported to a second station where a robot places the insulated glass onto the tape.
The first robot then moves into position toapply the sealant between the frame andthe glass. A single component siliconematerial was selected for this application.
Working closely with the robot integrator,DOPAG designed a system to pump thesilicone directly from the 20 litre hobbocksin which it was supplied, using a P30 drumpump. This pump feeds the sealant to a
1a hunkeler are a fifthgeneration family ownedwindow manufacturingand timber constructionbusiness located inEbikon, close to Lucernein Switzerland.
Their high quality productshave constantly been indemand having suppliedwindows to manyprestigious buildings intheir 150 year history,including the luxurious 5star Palace Hotel on theedge of lake Lucerne.
A DOPAG membrane dispensing valveand nozzle is mounted onto the robotready for dispensing the sealant.
The DOPAG P30 pump and gear metering pumps aremounted overhead, directly above the robot stations.
Swiss window
manufacturer chooses
DOPAG to seal new
patented range of
windows
Fit for apalace
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Springinginto action
For several decades,STABILUS gas springs
and dampers have been well known for their successful use in the automobile and furnitureindustries, providing a practicaldesign element in more than 300different applications, whereverassistance in lifting, lowering,moving or adjusting is needed.
Applications in industries other than automotive, (where they areused for trunk, tailgate, door andhood opening, as well as providingcomfort and safety in seatadjustment applications), haveevolved and STABILUS hydro-pneumatic gas springs can now be found in such diverse productsas hospital beds, operating theatretables, roof windows, and officeseating.
Located in Koblenz in Germany, thecompany is a leading worldwidemanufacturer of gas springs,producing 120 million units annually,each and every one of which mustbe lubricated with accurate andrepeatable volumes of grease or oil, depending on the location within the gas spring assembly.
During the assembly process the gas springs, which have beenloaded onto a rotary table, firstlyrequire a small pre-determinedvolume of grease to be auto -matically applied to the piston rods. This is achieved at the firstlubricating station by means ofDOPAG needle type meteringvalves, each capable of accuratelymetering volumes between 0.001and 3.0 ml with each shot.
At the second lubricating station,tiny drops of oil are metered ontothe double lip seals in the cylindersin order to minimise friction, usingDOPAG chamber type meteringvalves. This type of metering valve is particularly useful for suchapplications as they feature a snuff-back facility.
This characteristic avoids thepossibility of unwanted drips of oil contaminating other parts or components following theconclusion of the metering process.
Finally, at a third station, a pre-determined volume of oil is metered into the cylinders using a flowmeter system controlled byMR20 metering controllers beforethe cylinders are charged withnitrogen.
The entire lubrication cycle is thuscompleted automatically, thanks to Hilger u. Kern / Dopag Groupadvanced metering technology.
DOPAG needle type metering valvesmeter grease onto the piston rods
A selection of STABILUS gas springs
Gas springs are
lubricated accurately
and automatically with
DOPAG metering
systems
STABILUS gas springs areused to support the openeddoors of the of The RenaultLaguna coupe concept car
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Deep seasoundings
Established in 1971,Sonardyne is a recognised
world leader in the design, develop -ment and support of underwateracoustic navigation, positioning and communications systems.
Applications for their extensiveproduct range are found within the offshore oil exploration,construction, drilling andoceanographic industries.
Their acoustic navigation andunderwater positioning systemsprovide the highest accuracy andlowest risk whether you arenavigating a diver in shallow wateror installing equipment severalthousand metres deep on theseabed.
Every transponder manu -factured by Sonardyne mustbe protected from thepotentially damaging
effects of immersion in seawater byencapsulating the sensitive acoustictransducer in polyurethane.
In order to maintain the Company'sexacting standards, this importantprocess must take place in atemperature and humidity controlledenvironment, since excessivehumidity could cause the isocyanatecomponent of the polyurethane to crystallise, whilst variations intemperature would affect the potlife of the mixed material.
With this in mind, Sonardyne have recently constructed a newencapsulation facility where threedifferent formulations of twocomponent polyurethane can bedispensed onto the components inindividual fume extraction cabinets.
As part of this state of the artfacility, Sonardyne chose DOPAGELDO-MIX 101 systems to meter,
mix and dispense the polyurethaneencapsulant onto their components.
These gear pump driven systemshave the flexibility to precisely adjustflow rates quickly and easily whennecessary, whilst mixing ratios canalso be changed simply by selectingan additional programme from thecontroller.
The ELDO-MIX 101 systems are fedby pressure vessels, each of whichare stowed neatly beneath theirindividual fume cabinets, whilst thecontrol panels are wall mountedtogether at a convenient height for the operator.
Dispensing then takes place withDOPAG twin valves, fitted with staticdisposable mixers, ensuring trouble-free, precise encapsulation ofcomponents destined for the harshenvironment of the world’s oceans.
Underwater acousticsystem companychooses DOPAGELDO-MIX 101 systemsfor encapsulation
A Sonardynesubseapositioningtransponder
A subsea template, weighing 1,150 tonnes and measuring 25 by 17 metres gets lowered intothe water offshore Norway. Sonardyne's acoustic positioning products were used to positionthe template to within a few centimetres on the seabed in 1,100 metres of water.
The wall mounted ELDO-MIX control cabinets
Dispensing themixed polyurethane
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Schrader uses a DOPAG
MICRO-MIX E for a new
venture into the medical
industry sector
components, which are mixed at a ratio of 100:100, are firstlydegassed separately in pressurefeed containers to ensure a bubblefree LCD display.
They are then fed, again separately,to the MICRO-MIX system wherethey are proportioned and fed underpressure to the twin dispensingvalve where they are homogenouslymixed using a static mixing system.
A small bore flexible plastic tube isthen used by the operator to directthe mixed shot of silicone into asmall hole in the rear of the sensorsvia a tapered nozzle, followingwhich the sensors are finally heatedin an oven to assist with the curingtime.
Accuracy, repeatability and reliability,backed up by first class service is a requirement of this progressivecompany, which is why SchraderElectronics were once again happyto select equipment from the Hilgeru. Kern / Dopag Group for theirproduction needs.
they have developed an intelligentpressure sensor for use in themedical industry.
Code named TIPI, this diminutivedevice - it measures just 40 mmsquare across its face, is designedfor use with pressurised gascylinders, where it can monitor,display and transmit not only thepressure in the cylinder, but alsoadditional vital information such asthe remaining volume of gas left inthe cylinder, whilst simultaneouslydisplaying the amount of timeremaining available for gas use.
Following assembly of the devices,they are encapsulated with a twocomponent clear silicone, whichserves both to protect the sensitiveelectronics located within thehousing and to securely fix thetransparent screen in place.
Schrader chose a DOPAG MICRO-MIX E to meter, mix and dispensethe silicone into the sensors in 5gram shots, each shot actuatedby the operator depressing a foot pedal. The two silicone
Businesses frequentlycondemn new government
regulations as restrictive, but inNorthern Ireland, Antrim basedSchrader Electronics, a smallcompany by international standardsbut the leader in its field, welcomesa law passed in Washington whichhas driven its sales from £45 millionthree years ago to more than £110million today.
Schrader Electronics designs andmanufacturers remote tyre pressuremonitoring systems, which haveincreasingly been adopted by theworld’s leading car manufacturers,but from the end of next year, everysingle car sold in the United States,including imported models will have to be fitted with these safetydevices. At current estimates, thatmeans four sensors for each of 16million cars!
Unphased by this massiveopportunity, Schrader are nowapplying this technology toapplications in other diverseindustries and in their first forayoutside of the automotive sector,
Intelligentmetering
®
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Henning Pedersen, Managing Director of DOPAG SCAN ApS is delighted andhonoured to have been selected by Børsen, Denmark’s leading professional
newspaper to join a much coveted and exclusive group of elite companies whose growthhas been identified as being exceptional.
Known as Gazelle, the award, which is based on official figures released by The DanishCommerce and Companies Agency is defined as: “A company, which during the last four yearshas had continuous growth in turnover or gross profit and in total has more than doubled theturnover or gross profit in this period.”
Commented Henning “It is most rewarding to be officially recognised for this achievement. We are looking forward to continuing to expand our sales even further in the coming years.”
DOPAG scoops prestigious award
To mark the opening of their new production facility for DOPAG wind energy metering and mixing systems at Hilger u. Kern headquarters in Mannheim, Germany, colleagues from DOPAG Switzerland were invited
to attend the opening ceremony, which included product briefings and live demonstrations.
The two days also provided the opportunity for networking during a cruise on the river Neckar and afterwards at the historic castle at Heidelberg, following which, a special dinner was enjoyed in the new production facility.Remarkably, entertainment during the evening included a rare guest appearance by none other than Elvis Presley!
Hilger u. Kern open new productionfacility in Mannheim
Hilger u. Kern Dosiertechnik • Käfertaler Straße 253 • 68167 Mannheim • GERMANY Tel. +49 621 3705-0 • Fax: +49 621 3705-200 • [email protected] • www.hilger-kern.com DOPAG Dosiertechnik und Pneumatik AG • Langackerstrasse 25 • 6330 Cham • SWITZERLAND Tel. +41 41 7855-757 • Fax: +41 41 7855-700 • [email protected] • www.dopag.com
Hilger u. Kern / Dopag Group
Editor
Hilger u. Kern / Dopag GroupMarketing CommunicationCopyright Hilger u. Kern / Dopag Group® Registered trademark DOPAG
Author: Bob Jones: [email protected]
1500 copies printedPrinted on chlorine free bleached paperArth, Schweiz / 2009
