technology | Moulds and components in brief
❙ Italy-based ML Engraving has updated its collection of exclusive 3D surface textures. The company, which is a leading player in laser texturing of injection moulds, unveiled its latest Touch & Feel collection at the Plast show in May. It also showed examples of its Hybrid 2D textures, which combine laser photo engraving and chemical etching to create depth effects on large areas at high speed.
www.mlengraving.com
❙ Kugler’s Micromaster machining centre is designed for machining micro-struc- tured functional surfaces on flat mould surfaces or mould inserts. The hydrostatic machining system can be used to create micro-struc- tured surfaces to optimise optical properties, wetting behaviour or tribological performance. Applications include production of light guide surfaces, for example.
www.kugler-precision.com
❙ Meusburger has expanded its standard parts collection to include ready-to-use micro moulds and accessories designed for use with Babyplast injection ma- chines. The new standard mould sets are available in a number of different variants and steel types. They are supported with two standard- ised ejector sets and guide systems. The company has also extended its H4062 air cushion assembly table, adding a new larger 996mm by 1,846mm version.
www.meusburger.com
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MHS offers “Black Box” valve gate actuation
Canadian hot runner manufac- turer Mold Hotrunner Solu- tions claims its latest Rheo-Pro Black Box pneumatic actuators are the most reliable valve gate actuators available. The new units eliminate
elastomeric seals and lubricants and require no cooling, according to the company. They are said to be suitable for all valve gate applications, including high temperature and clean room processing. The company claims the actuators function reliably at hot runner tempera- tures up to 450˚C and mould temperatures above 200˚C. “The cylinder seal is the weak point in a traditional
system as it needs lubrication and must be kept cool, a maximum of 200˚C,” says MHS CEO Harald Schmidt. “You don’t want to have to split the mould and do maintenance because that is downtime, so we have removed from the valve gate anything that can be damaged.”
The Black Box units provide
switching in the millisecond range to allow precise synchronisation across mould cavities. The units are said to be suitable for both cascade injection and sequential valve gating, while an easily accessible fine thread adjustment system for valve pin height makes it possible to tune individual gates to achive optimum gate vestige. Schmidt says the Black Box
actuators will provide a better alternative to electric valve gate actuators in many applications due to their temperature tolerance, operating speed and elimination of lubrication. ❙
www.mhs-hotrunners.com
Portable water circuit leak testing system
US-based Die-Sep’s Mould Water Leak Tester Model MWLT 212 is designed to test an entire mould for leaks in the toolroom prior to mounting in the moulding machine. The portable MWLT 212 unit is supplied with a 25 gallon water reservoir, a 3 gallon/ minute water pump capable of supplying at pressures up to 45psi, and can be pressurised to 125 psi using a standard industrial compressed air supply system (which is also used to blow the circuits clear after testing). It can test the entire mould at one time using the standard mould water
INJECTION WORLD | June 2015
manifold, or it can test up to 12 mould circuits individually. Features of the MWLT 212 include a water filter in the return line, check valve on the air line to prevent water backup, flow indicator, pressure gauge and digital flow meter. A thermometer can also be ordered for calculation of Reynolds number. Die-Sep also manufactures a
range of mould separators and tippers. These machines are custom built to open, tip and close any size mould and can handle both conventional and stack mould designs. ❙
www.diesep.com
Simple mold cycle counting
Designed for use with fast cycle moulds, the Electronic Cycle Counter from Cumsa is a self-contained device that allows the number of moulding cycles to be counted and recorded automatically. Designed to be installed in the mould without the need for screws, the unit can count up to 9,999,999 cycles. It is provided with a partial reset feature for shorter production runs and will indicate if any attempt has been made to fraudu- lently change the display. ❙
www.cumsa.com
www.injectionworld.com
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