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www.us-tech.com
August, 2018
PVA’s Dispensing, Coating and Custom Automation
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used in a variety of industries. Its technology, knowledge and flexibility allow the company to develop cus- tomized solutions that best fit the users’ process requirements. All sys- tems are backed by a 24-hour global service network, including quick-re- sponse, regionally trained techni- cians.
Many Industries Served PVA provides equipment for a
broad range of applications, includ- ing adhesives and sealants, automat- ed dispensing, coating, curing, cus- tom automation, manual dispensing, microdispensing, and SMT and semi- conductor dispensing applications. For electronics, including smart- phone manufacturing and LCDs, the company’s automated and manual solutions are designed to provide ac- curate, reliable dispensing of lubri- cants, solvents, sealants, adhesives, and pastes. In the automotive industry,
there are many dispensing applica- tions, from selective spray coating to potting, gasketing and bead dispens- ing, as well as applying adhesives and lubricants. For medical device manufacturing, the company offers
equipment for handheld prototyping applications up through large-scale manufacturing. PVA systems are used for plastic, glass and metal bonding, lubrication, coating, as well as dispensing UV adhesives for bond- ing cannulae, catheters and other components. The military and defense mar-
ket is known for high-mix, low-vol- ume applications and unconvention- al boards. In this market, PVA’s ma- chine flexibility and patented four- axis option has made the systems valuable.
PVA’s systems are used in nu-
merous renewable energy applica- tions to ensure reliable products in the solar assembly process, including solder paste dispensing, edge and frame sealing, junction box potting and attachment, thin-film backside coating, and electrical connection sealant and grease. Combining flexible custom solu-
tions with diverse applications ex- pertise allows the company to meet a variety of needs in general packaging as well. PVA is an excellent equip- ment source for dispensing hot melt adhesives, doming materials, seal -
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Whelen Engineering Improves Fine-Feature Inspection
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res image. We can also save and archive the image for future refer- ence and process history.” The Chester, Connecticut, facili-
Purex Inc
2246 Palmer Drive Suite 108
Schaumburg, IL 60173
www.purexinc.com
ty is a different manufacturing envi- ronment, according to Eric Soderberg, electrical manufacturing engineer. Soderberg has three INSPECTIS ma- chines, three manufacturing lines, and very different requirements than those of the Charlestown factory. “Here in Chester, it’s a low-vol-
ume, high-mix environment, so we have a lot of changeover — on aver- age, 15 different assemblies per day, per line.” That could potentially make any production station a bot- tleneck, but Whelen’s engineers saw an opportunity where inspection could have been one. Soderberg and Blundon shared similar impressions of the INSPECTIS. “I’ve looked at a lot of different
inspection systems,” says Soderberg. “This was the first one that seemed to be designed and used for inline assem- bly, rather than as an offline station.” At the inline INSPECTIS sta-
tion, two side-by-side monitors are used. The one on the left shows the live INSPECTIS image, and the one on the right displays an assembly print image. “In Jim’s facility, he’s got one big flatscreen monitor that he flips between the INSPECTIS image and the assembly print,” says Soderberg. “The problem is that we panel-
ize, so the monitor on the right has to match up to the image on the board. We call out the fixed rail edge, which stands out on the front rail with the operator, and images within the ar- ray don’t always line up with the pic-
ture that our system gives us of the prints. What I always stress to the operators is that we’ve set up the monitor on the right to be able to ro- tated left or right to match up to what they see on the board, some- times vertically, sometimes horizon- tally. On top of that, the tiny compo- nents, LEDs, are difficult to see. Us- ing handheld magnifiers to compare images on the left with those on the right wasn’t effective, without the de- gree of clarity provided by the IN- SPECTIS. You need to be able to see the tiny components to compare to the assembly print on the right.” Soderberg notes that the cam-
era system has helped to speed up his facility’s pre-inspection process by about 50 percent, as well as adding better lighting and imagery, along with a wider FOV. Whelen values its independ-
ence. “As an OEM, it’s part of the Whelen philosophy to make as much of our own product as we can, includ- ing the bare boards; we fabricate our own PCBs. This helps us control our quality and stabilizes our delivery schedules,” says Soderberg. “In addi- tion to doing our own board fab, and our own assembly, we make our own cable and wire harnesses, plastic in- jection molding, and box build. This keeps our overhead lower and allows us to respond to our customers faster and more effectively. We try to source as many of our raw materials and parts from U.S. sources as we can. We’re a firm believer in that, es- pecially with components.” Contact: Ascentech, LLC, 127
Goose Hill Road, Chester, CT 06412 % 860-526-8903 E-mail:
info@ascentechllc.com Web:
www.ascentechllc.com r
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