Hettinga develops gate, mold-in hinge
Injection press maker Hettinga Technologies Inc. has developed two new technologies: a gate for molding large parts and a molded-in hinge.
Available for license, Hettinga's Film Gate helps fill multiple cavities and large, complex parts. Unlike the traditional ``fan'' gate, the Film Gate can be positioned to optimize flow and improve part aesthetics, as the melt flows directly into the mold.
The gate uses a pair of facing tenons that retract into a mortise cut into one section of the mold. The tenons are machined to create a central sprue, as well as the film gate and runner, which extend the length of the mold. By changing the contour of the tenon surfaces, the film of resin can be ``tuned'' to supply more or less resin to a particular area.
The Des Moines, Iowa-based company said its self-aligning Lamina Hinge can be made from a variety of flexible materials. Applications include luggage, furniture, construction, appliances, packaging, shipping, publishing, farm equipment and boating.
Tel. (515) 270-6900, fax (515) 270-1333.
Graham Engineering sells 4-station unit
Graham Engineering Corp. has sold its first GEC-4 indexing wheel blow molding machine, to Graham Packaging Canada in Toronto.
Graham, known for its continuous wheel machines, introduced its first four-station indexing wheel at NPE 1997. Graham Packaging Canada took delivery of the first GEC-4, equipped with a 90-millimeter extruder and a four-parison head. Initially, the machine will product a 12-ounce shower gel bottle, using 16 mold cavities. Bottles leave the machine oriented in single file for testing, flame treating, and labeling. Graham Packaging Canada picked the GEC-4 because of its quick mold-and material-change capabilities and consistency.
York, Pa.-based Graham Engineering plans to demonstrate a GEC-4 at the K'98 show in Dusseldorf, Germany, this fall. The company has sold several machines to Graham Packaging Co.'s operations in Europe, a market that now uses large, dual-station shuttles or long-stroke machines with as many as 16 parisons in line. The GEC 4, by comparison, requires only four parisons.
A mold carrier picks up the parisons and shuttles across to the wheel, where blow pins are inserted. Then the wheel begins to rotate and indexes to the next position. Parts drop out of the bottom of the machine.
The indexing wheel machine does calibrated neck finishing that was not possible with Graham's continuous wheel blow molders, which used blow needles.
Graham also builds a five-station wheel-indexing wheel machine, for larger containers.
Tel. (717) 848-3755, fax (717) 846-1931.
Dynisco integrates Kona, Eurotool lines
Dynisco Inc., which bought European hot-runner supplier Eurotool a year ago, has integrated the product lines of Eurotool and its Kona unit, based in Gloucester, Mass.
Eurotool's CB Hot Runner System is the first in a line of products sold by Kona.
Bruce Fishman, Kona's vice president of sales, said the CB line ``gives us a broader product range and strengthens our presence in the small component industries.'' Markets for the CB include electronics, medical, closures, connectors and industrial products.
The CB series includes a range of open flow bushings with four different gate configurations.
In other developments, Kona recently introduced the Quick Couple Valve Gate, an actuator system that boasts easy access for service, easy installation and reduced plumbing. The cylinder assembly is mounted in the top clamp plate. The valve pin, adjusting mechanism and coupling remain attached to the manifold. A simple snap ring attaches the coupling to the cylinder.
Tel. (978) 281-3810, fax (978) 281-5882.