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公开(公告)号：US4486260A
公开(公告)日：1984-12-04
申请号：US342437
申请日：1982-01-25
申请人： Claude W. Schaefer
发明人： Claude W. Schaefer
CPC分类号： B29C53/821 , B29C53/582 , B29C65/08 , B29L2009/00 , B29L2023/00
摘要： A semi-rigid collapsible air duct having helically biasing reinforcement element 24, enveloped between an inner skin and an outer skin with the reinforcement element in a uniform helical spacing enveloped by ultrasonic welds. The process for manufacturing the air duct includes feeding the inner duct wall skin onto a mandrel, feeding the helically biased reinforcement element onto the mandrel having a groove with a tighter helical shape over the inner duct wall skin, feeding the outer duct wall skin onto the mandrel over the reinforcement element, then passing that composite under an ultrasonic welder which welds the inner duct wall skin to the outer duct wall skin, enveloping one or more reinforcement elements in such a way as to leave the one or more reinforcement elements free to move within their respective envelopments to develope the maximum thrust to place the reinforcing elements in tension to prevent droop of the walls of the duct.
摘要翻译： 半刚性可折叠空气导管，其具有螺旋偏置加强元件24，其被包封在内皮和外皮之间，加强元件以由超声焊接包围的均匀螺旋间隔包围。 用于制造空气管道的过程包括将内部管道壁皮肤馈送到心轴上，将螺旋偏压的加强元件馈送到具有在内部管道壁皮肤上的具有更紧的螺旋形状的凹槽的心轴上，将外部管道壁皮肤馈送到 心轴在加强元件上方，然后将该复合材料通过超声波焊接机，该焊接机将内部管道壁皮肤焊接到外部管道壁皮肤，以一定的方式包围一个或多个增强元件，使得一个或多个增强元件自由移动 在其各自的包络内，以开发最大推力以将增强元件放置在张力中，以防止管道壁下垂。
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公开(公告)号：US4058996A
公开(公告)日：1977-11-22
申请号：US687309
申请日：1976-05-17
IPC分类号： B21C37/12
CPC分类号： B21C37/12 , B21C37/121 , B21C37/124
摘要： A machine for manufacturing metal duct or pipe having improved efficiency, reliability, and speed of operation. A continuous, thin metal strip is corrugated, helically wound and seamed to form a durable yet bendable duct or pipe. The corrugation of the strip along its longitudinal axis is achieved by passing the thin metal strip through a plurality of synchronously driven (same RPM) corrugating strip roller die stands, each stand having progressively larger diameter rollers such that as a point on the metal strip passes from one corrugating strip roller stand to the next, the next stand rollers have progressively higher circumferential surface speed than the last, creating a pull on the strip material emerging from the preceeding roller stand, the pulling force at each stand preventing wrinkling or buckling of the strip as it passes through the corrugating operation. The corrugated strip is then helically wound into a bendable duct having a circular cross section by passing adjacent edges of the strip through novel, nonfouling front and rear strip lock tucking fingers which act to quickly but reliably interlock adjacent strip edges. The interlocked seam is then passed through and between compression rollers which have, peripherally disposed, a modified gear tooth pattern about their circumference forming a plurality of ridges and furrows along the seam. The bottom compression roller is ball-bearing mounted for free and unrestrictive rotation. All of the machine rollers, including the strip corrugating die rollers and the compression seam forming rollers are synchronously driven in rotation by a common drive motor through an endless drive chain. The continuously formed metal pipe may be cut to any desired length through the use of a cam-actuated moveable cut-off saw blade which severs the finished pipe perpendicular to the longitudinal axis of the pipe.
摘要翻译： 一种用于制造金属管道或管道的机器，其具有提高的效率，可靠性和操作速度。 连续的薄金属条是波纹状的，螺旋缠绕并缝合以形成耐用且可弯曲的管道或管道。 条带沿着其纵向轴线的波纹是通过使细金属带穿过多个同步驱动（相同的RPM）波纹带辊模座实现的，每个支架具有逐渐变大的直径的辊，使得当金属带上的点通过 从一个瓦楞纸带辊架到下一个，下一个支架辊的圆周表面速度比上一个更高，从而使从前一个辊架上出来的条带材料产生拉力，每个支架上的拉力防止起皱或屈曲 当它穿过波纹操作时， 然后将波纹条螺旋地卷绕成具有圆形横截面的可弯曲管道，通过使条带的相邻边缘通过新颖的，不粘结的前和后条带锁定收紧指，其快速但可靠地互锁相邻条带边缘。 然后将互锁的接缝通过并且在压缩辊之间并且在压缩辊之间并且在压缩辊周围设置有围绕它们的圆周形成改变的齿轮齿形，沿着接缝形成多个脊和沟。 底部压缩滚子是滚珠轴承安装，用于自由和无限制旋转。 包括带状波纹模具辊和压缩成型辊的所有机器辊由公共驱动马达通过环形驱动链同步驱动旋转。 连续形成的金属管可以通过使用凸轮致动的可移动切割锯片切割成任何期望的长度，该锯切切割垂直于管的纵向轴线的成品管。
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