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    • 70. 发明公开
    • Method and apparatus for making drip irrigation devices
    • Verfahren und Vorrichtung zur Herstellung einesTropfbewässerungsrohres。
    • EP0549515A1
    • 1993-06-30
    • EP92630100.3
    • 1992-11-19
    • HYDROMATIC LTD.
    • Bloom, Shlomo
    • B29C47/02
    • B29C66/61B29C47/0023B29C47/02B29C47/026B29C47/028B29C47/20B29C65/028B29C66/1122B29C66/53242B29L2023/22B29L2031/70Y10T156/17
    • Drip irrigation device is made by continuously extruding a tube (4) and simultaneously feeding a plurality of dripper units (8) in succession within the tube (4) as it is extruded. Each dripper unit (8) is arrested as it arrives at a first location which is a short distance downstream of the extrusion head (2) where the extruded tube (4) is still tacky, and is then moved transversely to bring into light contact with the tacky surface of the extruded tube (4) to cause the dripper unit (8) to lightly adhere to the tube (4) and to begin to move axially with it. A short distance downstream of the first location where the dripper unit (8) has attained the same axial velocity as the extruded tube (4), the dripper unit (8) is pressed into firm bonding contact with the tacky inner surface of the extruded tube (4).
    • 滴灌装置是通过连续地挤出管(4)制成的,同时在管(4)挤出时,连续地将多个滴液单元(8)连续地供入管(4)内。 每个滴水器单元(8)到达位于挤出头(2)下游较短距离的第一位置处,其中挤压管(4)仍然发粘,然后横向移动以与 挤出管(4)的粘性表面使得滴液单元(8)轻轻地粘附到管(4)上并开始与其轴向移动。 在滴液单元(8)的第一位置的下游距离挤出管(4)具有相同的轴向速度的短距离处,滴液单元(8)被挤压成与挤压管的粘性内表面牢固地接合 (4)。