| 摘要 |
A method for temperature conditioning thermoplastic preforms for blow molding. The preforms are guided along a chain path in a transport direction by a plurality of transport and handling means through a heating apparatus. In a heating section, the plurality of heating devices are arranged one after another in the transport direction. On at least one side opposite the heating devices, counter-reflectors are provided, which together with heating devices, form a tunnel-like heating area through which the preforms are transported. In an area of the heating section, a concurrently moving counter-reflector is assigned to each perform or each transport and handling means. The counter-reflectors are guided on a circulating reflector path separate from the chain path, which in the area of the heating section runs parallel to the chain path and in at least one area outside the heating section takes a path route deviating from the chain path. |
| 主权项 |
1. A method for temperature conditioning of preforms made of a thermoplastic material to a temperature and temperature distribution suitable for blow forming in a heating apparatus with a plurality of heating devices, wherein:
the heating apparatus has a plurality of transport and handling means for transporting and handling the preforms through the heating apparatus along a transport path; the transport and handling means are connected in chained fashion and guided along a circulating chain path; along a heating section, which is a part of the transport path, the plurality of heating devices are arranged in a stationary, one behind another in a transport direction; on at least one side lying opposite the heating devices, counter-reflectors are provided, which, in an area of the heating devices, and together with the heating devices, form a tunnel-like heating area, through which the preforms (1) are transported for purposes of heating; at least in an area of the heating section, a concurrently moving counter-reflector is assigned to each preform or to each transport and handling means, which is moved concurrently with the preform through the heating section; and the counter-reflectors are guided on a circulating reflector path separated from the chain path, which in the area of the heating section runs parallel to and at a first distance spaced apart from the chain path and which, in at least one area outside the heating section takes a route deviating farther from the chain path, such that the deviating route runs at a second distance that is greater than the first distance from the chain path. |
