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Arburg highlights high-tech manufacturing solutions at NPE 2006
Electric Allrounders and anniversary series Golden Edition at show in Chicago
A wide array of machines with integrated peripheral equipment will exhibit a diverse range of applications with a common theme: Intelligent solutions for costeffective manufacture of quality parts through practical execution.
Electric Machine Technology - Allrounder A The Allrounder A - "A" means Alldrive - electric machine series designed for highperformance moulding while offering a wide range of modularity and ex-pandability will demonstrate a highlevel of speed, injection dynamics, precision and application flexibility.
Four very different applications on four machines will display the inherent versatility of the electric Allrounder A and prove the performance attributes of this leading modular drive technology. A definite highlight will be the electric Allrounder 420 A 1000-400 (110 tons) demonstrating robust fastcycling performance producing thinwalled cups in an impressive 2.3 second cycle time including robotic takeout. Another highlight will be an electric multicomponent Allrounder 420 A 800-170/170 (88 tons) configured with two injection units and equipped with the integrated and freely programmable Arburg Multilift H robotic system for precise part handling and dynamic take out speeds. Of particular interest will be the moulding of the material combination LSR and PC for the 1 + 1 cavity ice scraper. An electric Allrounder 570 A 2000-800 (220 tons) will display the inherent benefits of the standard direct drive and liquid cooling technology for cleanroom applications. Moulding syringes in a 48 cavity hot runner mould in a cycle time of 12 seconds, a high quality melt and high throughput will be achieved with the utilization of a barrier screw. Last but not least, an electric Allrounder 320 A 500-170 (55 tons) equipped with an LSR package will mould wire insulators in a 144 cavity mould, demonstrating precise injection control and the universal modularity enabling the integration of auxiliary equipment directly through the machine control. This exhibit will also feature the new optional Selogica direct user interface with its 15-inch touch screen monitor for improved operator transparency, simple navigation and intuitive programming.
The Alldrive principle With the Alldrive electric machine series, the electric main axes can be individually combined with standard electric or optional hydraulic auxiliary axes, making it possible to equip the machine as a fullyelectric version. The main functions of the machine, "mould opening and closing", "injection" and "dosing", have been designed with electric drives as standard. These drives are orientation and position-controlled and operate independently of each other with high precision and speed as well as low noise emission levels. This permits simultaneous operations, which not only save energy but also reduce cycle times. The other movements such as "ejection", "nozzle movements" and "mould functions" can be operated either hydraulically or electromechanically, depending on requirements. This concept allows the advantages of both systems to be combined: the machines have sufficient hy-draulic power at their disposal precisely where it is needed, and the highest level of electromechanical accuracy coupled with economical energy consump-tion wherever this is desirable for the production task at hand.
Golden Edition anniversary machine To celebrate its anniversary "50 years of Arburg in-jection moulding machines", the company has developed a special Allrounder series named the Golden Edition. An Allrounder 470 C Golden Edition will be presented at the fair moulding medical devices. Available in five machine sizes, 400, 500, 1000, 1500 and 2000 kN (44, 55, 110, 165 and 220 tons) clamping force, the Golden Edition comes standard with attractive high-grade equipment at an irresistible price. Each machine model is equipped with a performancegraded injection unit each with a choice of three screw sizes offering a shotweight range across the series between 2 and 434 grams (0.07 and 15.33 oz) of polystyrene respectively. The standard equipment on all the Golden Edition machines includes the Selogica direct machine control system with touch screen operation, servoregulated two-pump tech-nology for simultaneous movements, adapted, energyoptimised drive technology, highly wearresistant cylinder fittings and new switching valve technology for optimum part quality. A number of additional options are also available to meet individual requirements.
Allrounder S - tried and tested large machine technology and performance The Allrounder S machines are already very well known. In Chicago, two of the large S machines will be on display - a two-component version of the All-rounder 630 S as well as an Allrounder 820 S. On the Allrounder 630 S 2500-1300/150 (275 tons) the popular Arburg table tennis bat will be produced as a hard/ soft combination on a three-station mould, whereby the third station is designed as the transfer point between the mould and the Multilift H removal robotic system. Using this technology, it is possible to remove parts even while the mould is closed and production is running, which significantly reduces the cycle times. The two parts of the bat are joined to-gether at an assembly station where they are then ultrasonically welded. On an Allrounder 820 S 4000-3200 (500 tons), the largest machine of Arburg, complete Arburg briefcases will be injection moulded and assembled. A Multilift HV will remove the large parts made from ABS and transport them to an assembly station, where the two briefcase shells will be joined together and connected via pins on the hinges, so that the briefcase leaves the assembly station as a fully functional product. Both systems impressively demonstrate how fullyautomatic moulded part production with subsequent part assembly can work.
Back to the roots In this anniversary year, Arburg will be using two additional, smaller machines to demonstrate where the development of Arburg injection moulding technology began. These two models exhibit the latest technology available in the smaller Arburg machine category. The Allrounder 170 U 180-70 (20 tons) is ideally suited to the production of small, high-precision parts. The U series is available in four platforms with clamping forces between 125 and 1100 kN (14 and 121 tons). These versions can be combined with a range of injection units, whereby each unit is avail-able with various screw diameters of between 15 and 45 millimetres. This provides a large variety of practical combination options which allow the Allrounder U to be precisely adapted to the individual production requirements. The hydraulic system can be upgraded by means of various technology stages, culminating in full accumulator operation, and on the injection side the same applies to the regulation technology. Servoelectric drive axes can also be used. Finally, the Vario principle with the horizontally moveable injection unit is also available as an alternative to the parting line. A variety of different wearresistance categories and special screw geometries can be selected for the cylinder modules, depending on the material to be processed. All these features render the Allrounder U "universal" in the truest sense of the word.
The vertical Allrounder 175 V 125-30 (14 tons) is ideally suited to the easy encapsulation of inserts. As a free-space system with integral C-clamps, this ma-chine with a fixed vertical clamping unit features im-pressive degrees of freedom in the mould installation area. The ejection side mould half is fixed at the bot-tom and the mould opens upwards. The minimum mould installation height is 100 millimetres (3.94 inches), the maximum opening stroke is 225 millime-tres (8.85 inches). In addition, its small footprint means that the Allrounder V is also ideal for integration into production processes. Sliding or rotary tables can also be integrated without difficulties. With its low table height of 800 millimetres (31.5 inches), the simple and cost-effective vertical machine is extremely wellsuited for the manual insertion and removal of moulded parts. The fully hydraulic Allrounder 175 V with a clamping force of 125 kN (14 tons) is available with two injection unit sizes. The smaller size 30 injection unit can be equipped with 15 or 18 millimetre screws. The maximum moulded part weight is 9.5 or 14 grams (0.33 or 0.49 oz) of polystyrene respectively. When equipped with a size 70 injection unit, screw diameters of 18, 22 or 25 millimetres can be selected, whereby the maximum moulded part weight is then 21, 31 or 40 grams (0.74, 1.09 or 1.41 oz) polystyrene.
With this overview of its Allrounders, Arburg will once again be demonstrating the company's comprehensive injection moulding expertise at one of the most important international trade fair events of the year. In addition to designing the range of machine and peripherals in line with individual customer benefits, this expertise also includes the extensive range of services including consultation know-how, service and user training.
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