HOT RUNNERS | TECHNOLOGY
achieves this by allowing the melt to enter the nozzle runner channel from multiple sides as opposed to the single-entry point of traditional designs. Minimising barrel bow offers many downstream processing advantages which includes tubes roll concentrically in the labelling machine, an increase in final stage throughput, and minimis- ing machine downtime. In a recent blood vial application using Symfill Technology, barrel bow was reduced by up to 90% (as little as 0.15 mm) by eliminating core shift.
Mold-Masters has developed
SmartMold, a cloud-based software platform dedicated to the plastics industry providing real-time data to drive injection moulding innovation. Process data is collected from sensors embedded within the injection mould which is used for feedback and insights that drive enhanced productivity. The solution is the first step towards predictive and autonomous capabilities within a facility. In addition to collecting process data, SmartMold software offers performance tracking, downtime tracking, scrap tracking, maintenance reminders, alerts, reporting, analytics, mould information and document storage. SmartMold is compatible with any brand of equipment. Data collected through SmartMold is displayed on intuitive desktop and mobile interfaces. However, users also have the freedom to pull data into existing ERP/MES systems through APIs. Additionally, data can be exported from the SmartMOLD system in various formats, such as Exel, csv, xml and net. Users can scale the system to a facility and budget requirements and only pay for what is used.
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According to Heatlock, the hot runner market has been affected by the pandemic, with lower investment in new projects and products as a result. “However, together with the current global
situation we now are facing, I am still confident that the plastic injection moulding market will
recover over time,” says IMAGE: HEATLOCK
Thomas Kjellberg, Director Global Application Engineering.
“Energy and sustainability are the main trends at present, which drives
heater development to save energy. Biodegradable and recycled resins remain a challenge that the industry is currently working on. While other technical areas of interest at present
include the caps and closures market, high cavitation solutions, and comparative simulations for filling pattern.” Kjellberg says that Heatlock’s latest innovation for the hot runner market are its Straight series nozzles. The Straight series heat profile is extremely straight from the start to the end along the nozzle. The heater technology works well with the com- pany’s ceramic insulation, allowing full control over heat distribution and part quality. Other projects that Heatlock has recently been involved with include a valve gate HRS system for POM with a Pawl Disc 32 cavity. The project involved finding solutions to reduce plastics waste, shorten residence time and make use of a smaller injection machine. An open HRS system was also developed for COC, involving a head up display, one cavity, and high demands on the part surface quality. The project identified solutions in the tool to avoid defects. Heatlock also developed a solution for a valve gate HRS system for PET
Left: Heatlock says its new Straight hot runner nozzle series offer a straight temperature profile un-affected by mould temperature
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