Robots provide an intelligent help
Director of the factory Engel Automatisierungstechnik15/10/2002
An excellent example in a case of phone
The unity of closure without columns of the machine fuel transfer, of free access, facilitates lateral integration of the robot's high-speed (ERS) in the cell production, a great advantage to achieve cycle times shorter and, thereforemaximize productivity. Thanks to the high speed robot, the placement of the plastic into the mold and the taking of the finished pieces are held in way extremely fast. So take a plastic previously focused on preparation station and goes with it to the position of waiting in front of the still closed mold. To open it enters the mold and put the plastic in the exact into the mold cavity position. At the same time taken with its dual-head of desk, located on the side of the nozzle, the pieces of the casing (top decorated with plastic and bottom without decoration) and extracted them from the mold. The linear robot (ERC) manages the distribution of the pieces in the corresponding trays and the preparation and the prior focus of new plastics. Only through this Division of labour and communication interlined between parts of the installation are created in a time extremely short two pieces of plastic which can be the Assembly directly from the cell of production, without any extra work.
Thanks to this joint development of Siemens Bocholt as a manufacturer of the pìezas, Bayer as a supplier of material (also of the plastic decoration) and Engel as the installation Builder, has gone from an industrial manufacturing of large series of covers of telephone of plastic injected across its surface in the technique of thin-walled to a profitable maturity in the series. The installation is also a sample of the possibilities of modern technology IMD (IMD: In Mould Decoration = mold decoration). The example of production documents at the same time that often the combination of the technique of manipulation and the fuel transfer becomes the key to the profitability of the transformation of plastics molding technique by injection. Thus this application requires a high stiffness of the closure system, fast movements of the machine and high speeds of injection machine. Equipped with the corresponding modules, the machine for molding by injection of modular construction Engel Victory meet these conditions for thin-walled with inserts of plastic injection-moulding.
The installation Builder must perform this symbiosis of machine for molding by injection and handler. In order to make available to the company of injection technique of most appropriate installation to its task of transformation, Engel develops and also builds, in addition to machines for moulding by injection, the appropriate automation, complete systems from the single manipulator to the complicated cell manufacturing with specific seasons of further development of the product-including the EC declaration of conformity.
Handling of avanzadísima technology
In theory, these components can be individually combined to form more than 10 millions of variants.
The modular construction has been consistently in the now current fifth generation of robots of Engel, the so-called series E (Fig. 2). The smaller size (ERC 23) standard is designed for machines with forces closure of 400 to 6,000 kN, the median (ERC 63) for quantities of force closure of 2,500 to 18,000 kN and the large version (ERC 94) in this family automates machines for moulding by injection with forces closure of 13,000 to 55,000 kN (Fig. 3). Series E, robots Engel covers thus the range of machines for moulding injection used in the market.
The modular construction of the new series platform and brings many advantages to the industrial transformer and increased performance for less money in comparison with the previous series:
-higher speeds and accelerations in the standard implementation, - various power levels, selectable in digital control systems, - longer maintenance intervals and pleasant service (thanks to the permanent lubrication of the drives by zipper, to the use of linear guidance systems that require little maintenance)(, to the use of pluggable end switches, etc.), - digital control the vacuum of the suction cups (with indicator element and management), - extension of the number of optional additional modules, and what is not less important-lower price compared to the previous series (according to equipment)(, a 10-15 per cent).
Remote control robot - intelligence of automation
-a more rapid synchronization of the movements of the robot and machine - without additional hardware - via an internal bus connection of the systems of command, - new features for easier programming and management mode menu and teach-in-built-in security functions expanded and much more. Only focuses on the new role of system Softservo (Fig. 4), with which the strength of each axis is adapted to the respective situation. This is important for example in work placement and takes controlled by force or in the process of sliding.
With the remote control robot stand - alone also available, all Engel robots can also be used in all machines other than Engel and can communicate with them. This command has a very powerful RISC processor like the integrated version (common management of the command of the machine and controller of the robot through the screen of the machine), and communicates with the digital system with sensors and actors of the robot via a CAN bus and drive.
The application decides
But not all applications require High end performance. To take the injected parts and place them on a conveyor belt, the manipulators of the ER-HLi series offer an economic automation solution integrated, especially with machines without columns Engel in outside forces closure of 200 to 6,000 kN. This compact device of decision-making can be mounted alternatively in the fixed portamoldes plate or on the mobile phone. The pieces are deposited on the conveyor belt built into the grid for the protection of the machine. The area of the mold is well accessible, since the conveyor belt can move if necessary.
Full service of the technique of automation Engel program is completed through a comprehensive kit. Head of reception of the robot according to the geometry of the workpiece can be individually configured with the same. (Fig. 5).
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