Smart Molding International 2-2021

16 newsfeed smart_molding international 2/2021 The gate bushing is typically used in hot runner nozzles for preserving the gate point quality and preventing plas - tics wear in nozzle components. Gate bushings are also used in the event of frequent cavity plate changes. The type of gate bushing is determined based on the resin used and the application. Thermoplay, a business within Barnes Molding Solutions strategic business unit, is pleased to announce the ulti - mate generation of D-Bushing, which provides added safety, stability, and re - liability to the moulding process and less energy consumption. Double sealing D-Bushing has been designed for the new Thermoplay TF nozzles and is equipped with a double sealing ring on the external diameter to protect the injection system from any thermo - plastics leakage. Robust protection The external sealing diameter of the D-Bushing strengthens the nozzles while preserving the in - ternal components from wear and possible accidental dam - age during assembly and dis - assembly operations. Frequent maintenance The sealing diameter close to the in - jection point protects the integrity of the injection system, the tips in particular, allowing easy and safe mounting and disassembling of the cavities as well as frequent changes to the mould version. High thermal performance The D-Bushing creates a barrier that increases the nozzle insulation and re - duces the thermal dispersion, thus sav - ing energy consumption. No changes on nozzle pitch The external fixing ring allows for safe assembly and disassembly opera - tions without causing damage to the bushing and other components. The bushing can be fixed to both the nozzle plate and cavity plate by rotating the nut upward or downward. As a result of this fastening system, the bushing does not increase the minimum pitch due to the nozzle diameter. Simple design The design of the bushing is extremely simple and allows for wide tolerances in the layout and machining of the noz - zle seating in the mould. Process reliability The temperature inside the nozzle is more homogeneous, and the heating is more stable with less thermal dis - persion, ensuring a perfect system bal - ance and a reliable moulding process performance. Fast installation and maintenance The nut is fixed axially to the nozzle bushing. By turning it clockwise, the bushing is pushed toward the nozzle until there is coupling on the sealing diameter of the tip. When the default torque is applied, the bushing is fixed to the nozzle plate. By unscrewing the ring, the bushing is disassembled. The cable outlet in the middle of the nozzle body allows for replacement of the resistance, thermocouple, and tip without disassembling the injection system. Thermoplay www.thermoplay.com D-Bushing – the ultimate generation of gate bushing Barnes Molding Solutions is a stra- tegic business unit within Barnes Group, which includes highly re- spected brands in plastic injection molding tooling, hot runners and controls, Synventive, Thermoplay, männer, FOBOHA, Priamus, and Gammaflux. Molding Solutions’ comprehensive portfolio of advanced technologies and value-added ser- vices delivers premium tool-based solutions where demanding specifi- cations are required by global cus- tomers in the plastic injection mold- ing industry across a broad spectrum of applications. A steadily growing number of in - jection molders are being convinced by the precision and reliability of HRSflow's hot runner technology, which has been proving its perfor - mance in many industries for years. First introduced at K 2013, their ser - vo-driven valve gate system has since been a powerful driver of growth for this hot runner specialist, making it the world's No. 1 automotive supplier today. Now the number of units sold around the globe has passed the 1000 mark. The wide range of applications includes automotive engineering with lighting, interior, exterior and under- the-hood applications, increasingly also electrically driven vehicles, as well as logistics and environmental, house - hold and gardening. HRSflow’s servo-driven hot runner system convinces customers