Lawton's machines mold fuel-cell plates
Lawton Machinery Group of De Pere, Wis., has introduced a new generation of compression molding machines specially designed for molding fuel-cell plates.
Lawton said fuel-cell plate materials developed by Bulk Molding Compounds Inc. of West Chicago, Ill., are highly filled with graphite material, using fast-cure resins. The thermoset materials demand fast pressing speeds and the instantaneous buildup of full clamping pressure upon full close.
Accurate flatness is critical, since the plates have very thin wall sections, in some cases, less than 1 millimeter, according to Lawton Machinery.
The new press is equipped with a servocontroller, accumulators and servovalves to distribute the hydraulic oil for higher pressing speeds and a faster and smoother transition to buildup of full clamping pressure.
The controller gives feedback to the servovalves, averaging the previous four scans. That enables the machine to have a ``bumpless'' transition from rapid close to high-pressure molding.
Another feature is a 45-degree adjustable gib guiding system, so the platen temperature has very little effect on the guiding clearance on tie bars.
Tel. 920-347-1983, fax 920-347-9183.
AirConvey laboratory installs roll splitter
Precision AirConvey Corp. has installed a full-size PAC Model 52 roll splitter at its in-house test laboratory in Newark, Del.
The splitter permits testing on rolls up to 52 inches long, with diameters up to 40 inches wide. The unit automatically removes waste, startup or off-spec film rolled onto a core, without contacting the core itself.
Tel. 302-999-8000, fax 302-266-7559, email [email protected] vey.com.
Author's book details energy management
Plastics Information Direct, the technical publishing division of Applied Market Information Ltd. in Bristol, England, has published a book by industry expert Robin Kent, titled Energy Management in Plastics Processing: Strategies, Targets, Techniques and Tools.
The subject is timely, with the rising price of resin and energy costs.
Kent visited plastics factories around the world, observing and advising them on energy management. In the book, he describes a structured approach to energy management that can reduce power consumption by around 30 percent.
The book can be ordered online from www.pidbooks.com or from the publications department at Applied Market Information.
Tel. 44-117-924-9442, fax 44-989-2128, email [email protected] plastics.com.
Macchi's machinery receives upgrades
Macchi Spa, the blown film equipment maker in Venegono Inferiore, Italy, has improved the extrusion and control areas of its machinery.
Macchi has enhanced its Coex flex die heads, as well as refined its screw design to give better flexibility and productivity.
A recently introduced cooling ring with a lightweight carbon body provides light weight and thermal efficiency.
On the controls side, Macchi has introduced a Siemens wireless operator panel. For aftermarket service, the company offers a teleservice system so its technicians can solve problems remotely, via a wireless audio and video connection.
Macchi also uses Siemens torque motors on all components of its blown film lines.
Macchi North America Corp. is based in Gainesville, Ga.
Tel. 678-450-8170, fax 678-450-8172, e-mail [email protected]
Toshiba updates line of Scara TH robots
Toshiba Machine Co. America has upgraded its TH series of Scara robots.
The new TH-A series features a 20-30 percent improvement in cycle times, larger payloads and better repeatability.
Toshiba offers the new line in three models: TH650A, TH850A and TH1050A.
Standard cycle times are 0.31 second with a 4.4-pound payload on the TH650A, and 0.39 second with an 11-pound payload on the TH850A and TH1050 models.
The maximum payload is 22 pounds for the TH650A and 44 pounds for the two larger models. The TS controller can control a maximum of five axes at the same time.
Scaras are compact robots that pick up a part, then quickly spin to move the part to another location.
A rigid construction and vibration-free performance will give a longer life for the robot, said Toshiba of Elk Grove Village, Ill.
Tel. 847-709-7308, fax 847-709-7358, e-mail [email protected]
Denso automation saves factory space
Denso Robotics' XR-Series of compact, four-axis gantry robots combines a top-mounted Scara robot combined with a long-stroke beam robot.
Denso said XR saves plant floor space up to 40 percent more than conventional Scara robots. The robot also can handle parts movement without a conveyor, cutting capital equipment costs.
The line of high-speed robots has a reach of 8-12 inches and an x-axis stroke of 34-66½ inches, with a cycle time of 0.53 second.
Payload capacity is 6.6 pounds.
Scara stands for selective compliance assembly robot arm.
Denso Robotics in Long Beach, Calif., is part of Denso Corp., based in Kariya, Japan.
Tel. 888-476-2689, fax 310-952-7502, email [email protected] .com.
Sweco device brings functions together
Separation technology supplier Sweco said its Feed-Vac vibro-energy separator combines the functions of conveying, storage, feeding and screening of dry materials into a single unit.
The system links Sweco's vibro-energy separator and an Accu-Feed conical storage bin with an adjustable feed controller. That setup eliminates the need for a separate feeder and hopper.
The final component is a vacuum conveying system to transport dry powder or granules through a system of pipes to the separator.
Sweco, based in Florence, Ky., is a unit of M-I LLC of Houston.
Tel. 859-371-4360, fax 859-283-8469, e-mail [email protected]
Systematic introduces printer for foam cups
Systematic Automation Inc. of Farmington, Conn., has introduced a precision screen printer for foam cups, Model T-4.
The machine also prints on disposable cups made of plastic, including biodegradable plastic, and paper. Multicolor printing is accomplished by running the parts through the machine a second time.
A laser/servo system registers the second and third colors, by reading the leading edge of the first color image.
The cup drive is electronically synchronized with the servo-driven screen motion.
Tel. 860-677-6400, fax 860-677-6407. e-mail [email protected]
Operator can control pad printer's opacity
Inkcups Now Corp.'s sealed-cup pad printer, ICN-B100, is a table-top machine.
The B100 handles items as tall as 4.25 inches, including the part fixture. It has a pad compression capability of 120 pounds, at 80 pounds per square inch. An illuminated plate system makes the work area more visible.
The operator can regulate print opacity, thanks to variable controls for inking and print frequency.
Inkcups Now is based in Danvers, Mass.
Tel. 978-646-8980, e-mail [email protected] inkcups.com.
Conair dryers gain traction-belt drive
Conair Group Inc. has added a traction-belt drive to its small to midsized Carousel Plus dryers, a move the company said improves performance.
The device matches a cleated belt with a grooved traction band on the desiccant wheel. It is also easier to use and more reliable than other flat-belt or chain-drive systems, according to Conair.
Conair is headquartered in Cranberry Township, Pa., near Pittsburgh.
Tel. 724-584-5500, e-mail [email protected]