machinery feature | Downstream equipment
Medical winding A new dual-spindle automatic cut-and-transfer coiler from Conair is designed for high-speed winding of small, flexible extrusions such as medical tubing. Nominal line speeds of 800ft/min (243m/min) are
possible, but generate little or no friction or winding tension, says the company. This prevents deformities in delicate products such as medical tubing, and small tubes and flexible profiles. Automated transfer of winding to a new reel means there is no operator involvement or process disruption, which increases line speed and performance during changeover. “Speed is what sets the Conair ATC coiler apart,” said Chris Weinrich, general manager of downstream extrusion at Conair. Conair ATC coilers provide tensionless winding of small-diameter flexible tubing. Typical tube diameters are 0.085 to 0.5in (2.16-12.7mm), while tubes as small as 0.020in (0.5mm) in diameter can be accommodated with a special minimal tension trim control. Units are available in three different sizes, with maximum coil diameters of 24, 36 and 48in (61, 91 and 122cm). Automatic turret changeover is completed when a
set length of product has been coiled. The system comes complete with collapsible core assemblies or spools and can accept customer-supplied spools. All
winder components that come into contact with the extruded product are made from stainless steel or are hard-coat anodized.
Bending ratio The BMS 63 from Sica is an automatic machine for fast bending and socketing of PVC pipes that are commonly used in electronic and telephone systems. The machine can process pipes with diameters of 16-63mm, with possible final length from 140-650mm. It is equipped with a versatile multi-bender and multi-belling system that can bend with a variable angle of 0-90° (so it can also avoid bending) and with a bend radius of up to five times larger than the diameter of the pipe itself.
At the end of every bend/pipe, the machine can also
socket (through a suitable thermoforming process) both solvent cement and O-Ring type (optional) in every desired configuration, including: simple bend; bend with single socket end; bend with sockets on both ends (double socket); and, straight unbent pipe with single or double socket.
The bending is hydraulic/pneumatic, and controlled
through specific proportional valves and a linear encoder that ensures high precision and repeatability. Every setting is automatically adjusted from the operational panel with the machine in operation, which prevents interruptions, manual changes or dangerous access into the unit. Large glass panels either side of the machine allow full visibility while maintaining security. It allows the operator to reposition the pipe through the different units within the machine, which comprises: a transport and sorting unit for pipes entering the machine; two ceramic material heating units; two multi-thermoform- ing units; a multi-bending unit with logic control; and, an ejection unit of final bent/belled parts. If required, the machine can be equipped with an AL/
Tropical delight
Baruffaldi has developed a calibration tank for PVC, PP and PE pipes that is designed specifically for use in tropical countries. The tank is equipped with two extra discharge pumps for warm water, which improve calibration and cooling of the finished product, says the company. The tank forms part of the company’s Primac range. ❙
www.baruffaldi.eu
30 PIPE & PROFILE EXTRUSION | October 2014
T63 storage feeder which, with BMS 63, becomes a system for creating bent pipes. It can store pipes 3m long, automatically generate pieces of desired lengths (with a specific cutting system with mm precision), and continually feed the bending machine – allowing a fully automated process.
Click on the links for more information: ❙
www.baruffaldi.eu ❙
www.cdsmachines.com ❙
www.conairgroup.com ❙
www.sica-italy.com ❙
www.gillardcutting.com ❙
www.maillefer.net ❙
www.fb-balzanelli.net
www.pipeandprofile.com
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