| 摘要 |
<p>The invention relates to a method and a device for the continuous production of tubular bodies (1) with an internal longitudinal separating wall (2) for the production of tubes having two chambers (9, 9') which are separated from each other. According to said method an endless extruded tube (11) having an internal longitudinal separating wall (2) is produced and individual tubular bodies (1) of a defined length are cut off by means of a cutting device and subjected to further processing. According to the invention the tubular body (1) is made from a film (3) having a central, semicircular part (4) and two angled lateral wings (5). The semicircular part (4) is covered by a second film (6) serving as separating wall (2). A transverse cutter having two rotating blades (10, 10') is used as cutting device. The rounded extruded tube (11) having a longitudinal separating wall (2) is fed between the two rotating blades (10, 10') after having been collapsed and oriented in such a way that the collapsed extruded tube (11) has a central three-layered part (C) which consists of the collapsed, oriented separating wall (2) in the middle and an upper and lower flat tubular wall body section (12) on either side, as well as two two-layered areas (A, A') which adjoin the three-layered area on both sides. In this way each two-layered area (A, A') consists of bent, superimposed tubular body wall sections (13).</p> |
