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1. 发明授权

US5505813A Apparatus and process for the production of tubular bodies 失效
标题翻译：用于生产管状体的装置和方法
公开(公告)号：US5505813A
公开(公告)日：1996-04-09
申请号：US73590
申请日：1993-06-08
申请人： Freddy Scheifele , Hans Burger
发明人： Freddy Scheifele , Hans Burger
IPC分类号： B29C53/42 , B29C53/38 , B29C53/50 , B29C53/84 , B29C65/00 , B29C65/02 , B29C65/18 , B29C65/32 , B29D23/00 , B29L23/00 , B65B51/22 , B30B5/04 , B30B15/34
CPC分类号： B29C66/83423 , B29C53/50 , B29C65/18 , B29C66/0342 , B29C66/1122 , B29C66/14 , B29C66/4322 , B29C66/49 , B29C66/8181 , B29C66/9231 , B29C66/9241 , B29C65/32 , B29C66/723 , B29C66/961 , B29L2023/20
摘要： An apparatus for the production of tubular bodies, in particular for packaging tubes, from a foil strip (48) which comprises weldable plastic material and the longitudinal edges of which are thermally joined together has a shaping belt (46) which co-operates with shaping rollers (59, 60) and which shapes the foil strip (48) around a mandrel (45) to provide a tubular body, a lower driven transportation belt (20) which runs in the mandrel (45) and an upper driven transportation belt (33), the longitudinal edges of the foil strip (48) being accommodated in mutually overlapping relationship between the transportation belts. The upper transportation belt (20) is in the form of an endless belt which passes beneath a heating means, a pressing means and a cooling means and the heating means is in the form of an inductively operative high frequency heating means. In a process which can be carried out with that apparatus, the foil strip (48) is formed into a tube with an overlap formed from the edges of the foil, for the purposes of forming a welded seam in its longitudinal direction, and the overlap is introduced with its outer and inner sides of the tube into a belt gap (70) which is formed from the two transportation belts (20, 33) which are driven and circulate endlessly in parallel relationship, is melted therein by the transportation belts (20, 33) at least until phases which are capable of flow are formed, is pressed with preliminary hardening of the phases which are capable of flow, and is then cooled under the application of pressure.
摘要翻译：一种用于从包括可焊接塑料材料并且其纵向边缘热连接在一起的箔条（48）制造管状体，特别是用于包装管的装置具有与成形（46）配合的成形带（46）辊（59,60），并且将箔条（48）围绕心轴（45）成形以提供管状体，在心轴（45）中延伸的下驱动输送带（20）和上驱动输送带如图33所示，箔条（48）的纵向边缘在传送带之间以相互重叠的关系容纳。上部输送带（20）为通过加热装置，压制装置和冷却装置下方的环形带的形式，并且加热装置是感应操作的高频加热装置的形式。在可以用该装置进行的过程中，箔条（48）形成为具有由箔的边缘形成的重叠的管，用于在其纵向方向上形成焊缝，并且重叠被引入其管的外侧和内侧形成由两个传送带（20,33）形成的带间隙（70），两个传送带（20,33）以平行的关系无限循环地被传送带（20）熔化，33）至少直到形成有流动相为止，在能够流动的相的预硬化的状态下进行加压，然后在施加压力的状态下进行冷却。

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