Heating cylinder to put around an injection nozzle for an injection moulding machine

摘要

The cartridge is spirally rolled on the exterior of the hollow cylinder with a spiral groove. The conductors (30, 32) are galvanically separated from each other and arranged in different areas (Ba, Bs) in longitudinal direction of the cartridge. The electrical connections (34, 35) of the conductors are led out at the end of the cartridge. The spiral groove in the area (Ba) exhibits a smaller upward gradient than in the other area (Bs). A protective coat with longitudinal grooves is surrounded to the exterior of the hollow cylinder for admitting the inlets to the temperature sensors of the ingate and shank areas.