Method and apparatus for producing pipes for drip irrigation,申请号EP19910309079-传众专利搜索

Method and apparatus for producing pipes for drip irrigation

申请公布号：EP0480632(B1)

申请号：EP19910309079

申请日期：1991.10.03

申请公布日期：1997.05.07

申请人：

NAAN IRRIGATION SYSTEMS

发明人：GORNEY, MOSHE;GALILI, SHLOMO;KOREN, DAN;TAL, SHAUL;SOL, DAVID

分类号：A01G25/02;B29C47/02;B29C47/90

主分类号：A01G25/02

摘要：A technique for manufacturing extruded drip irrigation lines including drip irrigation elements having a non-circular cross section including the steps of: extruding a drip irrigation conduit; and heat welding discrete drip irrigation elements having a non-circular cross section to a portion of the interior surface of the drip irrigation conduit extending over less than the entire circumference thereof, the step of heat welding including the following steps: sequentially feeding discrete drip irrigation elements through the interior of the drip irrigation conduit; causing individual drip irrigation elements to establish initial contact with the extruded conduit as the extruded conduit is being stretched to its final cross sectional dimensions; and completing heat welding of the elements to the conduit when the conduit has substantially reached its final cross sectional dimensions. <IMAGE>