Corrugated plate manufacturing apparatus

摘要

Flat-plate connecting portions are formed in a band plate by a connecting-portion forming unit. The flat-plate connecting portions are cut off by another connecting-portion forming unit except one flat-plate connecting portion so as to form a corrugated-plate connecting portion. A corrugated-plate portion is formed by a corrugation forming unit, so that the corrugated-plate portion has multiple projections arranged in a width direction of the band plate and each of the projections extends in a plate feeding direction. The corrugated-plate connecting portion corresponding to a predetermined connecting number is cut off so as to form a corrugated fin having a predetermined number of corrugated-plate portions.

主权项

1. A manufacturing apparatus for a corrugated plate comprising:
a plate feeding unit for un-rolling a band plate from a coil and feeding an un-rolled band plate in a longitudinal direction of the band plate; a first connecting-portion forming unit for forming a plate connecting portion at one position of the band plate in a width direction of the band plate, wherein multiple plate connecting portions are formed in the band plate at predetermined intervals in a plate feeding direction of the band plate, so that multiple flat-plate portions are formed in the plate feeding direction and respectively connected to each other by each of the plate connecting portions; a corrugation forming unit having bending punches for bending each of the flat-plate portions between the neighboring plate connecting portions to form a corrugated-plate portion in such a way that the flat-plate portion is corrugated in the width direction of the band plate so as to reduce a width of the flat-plate portion in the width direction, wherein the corrugated-plate portion has multiple projections arranged in the width direction of the band plate and each of the projections extends in the plate feeding direction; a control unit for presetting a connecting number for the corrugated-plate portions to be included in a corrugated fin; and a cutoff unit for cutting off the plate connecting portion corresponding to a predetermined connecting number preset by the control unit, so as to form the corrugated fin, which is composed of one corrugated-plate portion or which is composed of the multiple corrugated-plate portions and one or multiple plate connecting portions; wherein the corrugation forming unit is composed of; multiple bending punches arranged in the width direction, each of the bending punches extending in the plate feeding direction; and a driving portion for sequentially pushing down the respective bending punches to the flat-plate portion in such an order from an intermediate bending punch to the bending punches at both side ends in the width direction, wherein the intermediate bending punch is formed at the position corresponding to the plate connecting portion; and the first connecting-portion forming unit is composed of; a cutoff punch having a groove at such a position corresponding to the plate connecting portion in the width direction, so that the flat-plate connecting portion is inserted into the groove when the cutoff punch is pushed down; and a driving portion for driving the cutoff punch so that the cutoff punch is pushed down, wherein the flat-plate portion of the band plate is positioned to the bending punches when the plate connecting portion is inserted into and engaged with the groove of the cutoff punch, so that the flat-plate portion is corrugated by the bending punches while the flat-plate portion is positioned to the bending portions.