Plastics Technology

AUG 2018

Plastics Technology - Dedicated to improving Plastics Processing.

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ADDITIVE MANUFACTURING Carbon, Silicon Valley, Calif., announced two new materials for 3D printing at NPE2018: Epoxy (EPX) 82 and Elastomeric Polyurethane (EPU) 41. EPX 82 is a high-resolution, high-strength engineering material with long- term durability, while EPU 41 offers higher resilience for making durable elastic lattices. EPX 82 has a heat-deflection tempera- ture of 239 F (115 C) and good impact strength, suiting it to applications requiring a balance of strength, tough- ness, and thermal-cycling durability such as connectors, brackets and housings in automotive and industrial sectors. Its mechanical properties are reportedly comparable to lightly glass-filled thermo- plastics (e.g., 20% GF PBT, 15% GF nylon) and meet USCAR-2 fluid-compatibility standards. New EPU 41 is especially well-suited for producing elastomeric lattice geom- etries that can outperform traditional foams. It has higher resilience at room and low temperatures than the existing EPU 40 grade; and its tear strength, energy return, and elongation suit it to cushioning, impact-absorption and comfort applications. (650) 285-6307 • carbon3d.com As reported in April's Keeping Up section, Proco Machinery Inc., Mississauga, Ont. (procomachinery.com), introduced at NPE2018 the Robo Packer case packer and Half-Cube Palletizer, both using collaborative robots ("cobots") for packing bottles. One feature of these systems not previously reported is availability of new "sleeve-style" robot end-of-arm tooling specifically for handling PET bottles. Because these bottles can stick to each other when hot, tooling that encases each bottle— up to four at a time—in a separate sleeve prevents bottles from accidentally touching each other. The sleeve tooling (patent applied for) is 3D printed in plastic for light weight because of the relatively low payload capacity of the cobots. Another introduction at the show was an upgraded leak tester from Amsler Equipment Inc., Richmond Hill, Ont. (amslerequipment. com), with a new camera system that can detect neck ovality issues. The inspection system handles bottles from 10 ml to 20 L at rates up to 18,000 bph. It can detect holes as small as 0.006 in. and can check for obstructions in the bottle neck, variations in wall thick- ness, and color deviation. Operating on either a continuous-motion or indexing conveyor, it also can detect fallen bottles and perform batch counting. The unit comes with an operator touchscreen with graphical display, locking caster wheels, and a 6.5-ft-long conveyor with dual guide rails. Air Logic Power Systems (ALPS), Oak Creek, Wis. (alpsleak.com), joined forces with IMD Ltd. of Switzerland (U.S. office in Nashville, Tenn.; imdvista.com) to come up with a "Total Bottle Inspection Solution." The new ALPS Flex Pitch is a fast, tool-less leak tester with integrated IMD Bottle Vision inspection. The system can test a wide range of empty containers without use of a timing screw, thus greatly reducing changeover time and cost for tools. Test heads can be preset to the required pitch for fast changeover between containers of different diameters. The integrated vision inspection can check for contamination, cosmetic defects, correct dimensions, and ovality with a "self-learning" ability that is said to make it intui- tive and easy to use. BLOW MOLDING New Testing & Handling Units at NPE MATERIALS HANDLING New Rigid & Elastic Materials For 3D Printing Versatile Diverter Valve Meets Industry 4.0 Objectives Vactec LLC, Kalamazoo Mich., has developed a material- diverter valve called the Director for vacuum-conveying systems. It is available in either manual or automatic configuration and can feed up to 12 materials to a single destination. Optional designs are available to feed multiple destinations. Standard sizes are 1.5 to 4 in.; the unit can be mounted horizontally or vertically. Director V, the vertical model, has a footprint of less than 1 ft² and can interface with new or existing vacuum systems. All connections in and out are hard piped, so there are no cumbersome flexible hose connections. Contamination is avoided with a purge cycle that can be manually or automatically actuated for a material change. One inlet is dedicated as a purge port, and a single conveying/ purge cycle cleans the valve to prepare it for the new material. If the material being conveyed is abrasive, the valve is supplied with Vactec's NiTec finish, which raises the hardness to 1100-1300. "What processors will appreciate most about the Director is its versatility and the ability to have a traceable, verifiable material diverter. With a manual or an automatic remote-controlled option that meets Industry 4.0 objectives, this eliminates those bothersome flex- hose 'spaghetti bowls' once and for all," comments Chuck Thiele, Vactec president. The automatic model can be programmed to trace the material selected, time of the start of a run and time of completion. Coupling the valve with an in-line weighing system enhances data acquisition and process-management capabilities. 269-599-3975 • vactecusa.com 52 AUGUST 2018 Plastics Technology PTonline.com Keeping Up W it h Technolog y

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