| 摘要 |
Apparatus for the automatic transformation of thin metal-stock into fin-strips of predetermined widths and lengths with groups of associated apertures and protuberances, for use in structuring core-units for heat exchangers required for controlling temperature conditions in various kinds of enclosures. The apparatus has juxtaposed elements, including one element for forming tube-embracing apertures and intermediate protuberances in the metal-stock and another element for recurring cut-off of predetermined lengths of finished fin-strips. All elements are arranged in series with antecedent elements for hemming the metal-stock, controlling the feeding and linear travel thereof, and with subsequent series of elements for advancing, discharging and stacking the finished fin-strips subject to later use in the structuring of desired types of heat-exchanger core-units. All of the elements are powered by a series of motors under the control of a manually and automatically operated switch mechanism.
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