Method and device for cooling of IR emitters for preforms
First Claim
1. A heating device for warming preforms before processing the preforms in a stretch blow or blow molding device, the performs including a mouth region and a longitudinal axis, the heating device comprising:
- a heating alley with a conveyor for movement of the preforms along a transport route, IR emitters being arranged on at least one side of the transport route, at least one back reflector being arranged on a side of the IR emitters facing away from the preforms, andat least one cooler for the IR emitters, the cooler creating a substantially first coolant flow to cool the mouth region of the performs and a substantially vertical second coolant flow that passes substantially vertically between the IR emitters and the at least one back reflector, the second coolant flow being at least partially feedable by the first coolant flow and/or is unitable with the first coolant flow.
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Accused Products
Abstract
A method for cooling IR emitters in a heating device for warming preforms before processing them in a stretch blow or blow molding device. IR emitters are arranged on at least one sidewall of the heating device parallel to the transport direction of the preforms, with at least one back reflector arranged on the side of the IR emitters facing away from the performs. The preforms to be warmed include a mouth region and a longitudinal axis and the mouth region is cooled with a first coolant flow. An almost vertical second coolant flow passes between the IR emitters and the at least one back reflector, this second coolant flow being at least partially fed by the almost horizontal first coolant flow and/or is united with the almost horizontal first coolant flow. A heating device and cooling device are also provided.
17 Citations
13 Claims
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1. A heating device for warming preforms before processing the preforms in a stretch blow or blow molding device, the performs including a mouth region and a longitudinal axis, the heating device comprising:
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a heating alley with a conveyor for movement of the preforms along a transport route, IR emitters being arranged on at least one side of the transport route, at least one back reflector being arranged on a side of the IR emitters facing away from the preforms, and at least one cooler for the IR emitters, the cooler creating a substantially first coolant flow to cool the mouth region of the performs and a substantially vertical second coolant flow that passes substantially vertically between the IR emitters and the at least one back reflector, the second coolant flow being at least partially feedable by the first coolant flow and/or is unitable with the first coolant flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification