Heating device for the tempering of preforms

摘要

A heating device for tempering preforms before processing in a stretch blow device. The heating device includes a heating alley with a plurality of infra red emitters, arranged parallel to the longitudinal axis of the tempered preforms. At least one back reflector and/or one filter is assigned to the infra red emitters, whereby the at least one back reflector and/or the at least one filter is segmented.

主权项

1. A heating device for tempering preforms before processing in a stretch blow device, the preforms each comprising a mouth region and a longitudinal axis, the heating device comprising:
a heating alley with a transporter for movement of the preforms along a transport route, a plurality of infra red emitters arranged in the heating alley; at least one back reflector and/or at least one filter proximate to the infra red emitters, the at least one back reflector and/or the at least one filter being segmented; and a floating mount including a rigid, torsion-resistant frame retaining the at least one back reflector and/or the at least one filter, the frame having a different thermal expansion coefficient than the at least one back reflector and/or the at least one filter; wherein the heating device includes the at least one back reflector, and further includes at least one counter reflector and at least one bottom reflector proximate the heating alley.