| 摘要 |
The invention concerns an installation for manufacturing a drip irrigation pipe ( 8 ) formed of a pipe ( 8 ) provided with drippers ( 4 ), including a dripper feed station ( 37 ), followed by an extrusion station ( 10 ), including an extrusion head ( 14 ) producing a tubular blank ( 22 ) and means for welding the drippers ( 4 ) to the inner wall of said blank ( 22 ), characterized in that the dripper welding means ( 4 ) include a support surface ( 50 ) and a counter-support surface ( 56 ) between which the drippers ( 4 ) are pressed against said tubular blank ( 22 ) so as to be welded thereto, said support ( 50 ) and counter-support ( 56 ) surfaces being arranged upstream of the calibrating means ( 24 ).
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