发明名称 |
Method and device for producing a helically wound tube |
摘要 |
A device for producing a helically wound tube comprises a rotating mandrel around which the tube is wound and an extruding device having an extruder head oriented to direct a continuous strip of plastic through a profile pressure mandrel which defines a calibrating guide channel which in turn is oriented to deposit the desired width of extruded plastic strip onto the mandrel. The guide channel advantageously includes walls defining a cooling passage for a coolant for example on the wall over which the extruded plastic is directed. The extruder and the guide channel are mounted on a carriage so that they may be shifted longitudinally if the axis of the mandrel apply a continuous strip of material thereover at a selected pitch angle. The extruder advantageously includes means for directing a reinforcing rod member into the extruder head so that the extruded strip includes a central tubular reinforcement with a base flange on each side of the reinforcement.
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申请公布号 |
US4466854(A) |
申请公布日期 |
1984.08.21 |
申请号 |
US19820440409 |
申请日期 |
1982.11.09 |
申请人 |
HAWERKAMP, MANFRED |
发明人 |
HAWERKAMP, MANFRED |
分类号 |
B29C47/02;B29C47/88;B29C53/78;(IPC1-7):B65H81/00 |
主分类号 |
B29C47/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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