公开(公告)号：US06502447B2

公开(公告)日：2003-01-07

申请号：US09736966

申请日：2000-12-14

申请人： Kenneth L. Adams ,  Michael E. Harmer ,  Robert L. Carlo

发明人： Kenneth L. Adams ,  Michael E. Harmer ,  Robert L. Carlo

IPC分类号： B21D5304

CPC分类号： B21D13/02 ,  B21D53/04 ,  F28F1/38 ,  F28F3/027 ,  F28F9/24

摘要： A progressive die for forming a turbulator having multiple rows of axial corrugations. The corrugations are slit and offset such that artificial turbulence is generated as it passes through the corrugations. The device includes a plurality of dies disposed along an axial material direction. A flat strip of material enters the dies and is folded about its longitudinal axis in a relatively wide V-fold. As the strip of material moves forward, it is intermittently stamped in the series of dies. The initial dies create a central V-shaped fold that gradually narrows into a U-shaped channel with straight walls. Once the first corrugation is formed, a series of progressive dies form the remaining corrugations in alternating fashion. Next, the material moves through a slitting station that provides apertures and an axial offset such that adjacent sections of the corrugation are slit and offset in the axial direction.

摘要翻译： 用于形成具有多排轴向波纹的湍流器的渐进式模具。 波纹被切割和偏移，使得当其通过波纹时产生人造湍流。 该装置包括沿轴向材料方向设置的多个模具。 平坦的材料条进入模具，并以相对宽的V形折叠围绕其纵向轴线折叠。 随着材料条向前移动，它间歇地冲压在一系列模具中。 初始模具产生中心的V形折叠，其逐渐变窄成具有直壁的U形通道。 一旦形成了第一个波纹，一系列渐进的模具以交替的方式形成剩余的波纹。 接下来，材料移动通过提供孔和轴向偏移的分切台，使得波纹的相邻部分在轴向方向上被切割和偏移。