首页> 外国专利> DRIP IRRIGATION HOSE; OUTLETS FROM REGULATING PASSAGE EACH COMPRISE A SINGLE LONGITUDINAL SLIT, WATER DRIPS FROM OUTLETS WHEN HOSE IS PRESSURISED; METHOD OF MANUFACTURE

DRIP IRRIGATION HOSE; OUTLETS FROM REGULATING PASSAGE EACH COMPRISE A SINGLE LONGITUDINAL SLIT, WATER DRIPS FROM OUTLETS WHEN HOSE IS PRESSURISED; METHOD OF MANUFACTURE

机译:滴灌软管;调节通道的出水口包括单个纵向弯头,当软管被加压时,出水口的滴水现象;制造方法

摘要

A drip irrigation hose in which the outlets from the regulating passage each comprise a single longitudinal slit (46, 47). The slits are sufficiently long and the film is sufficiently flexible so the water drips from the outlets when the hose is pressurized. The slits are sufficiently short and the film is sufficiently rigid so the outlets close completely when the hose is depressurized, inhibiting clogging. An apparatus for making the hose includes an outlet forming wheel (20) having a knife blade (30) on its periphery, a backing wheel (26) engaging the outlet forming wheel to establish a first nip (28) therebetween and having a circumferential slot (32) into which the knife blade fits at the first nip, and a rib forming wheel (22) having impressions around its periphery that define a desired track pattern for the ribs. The outlet forming wheel and the rib forming wheel are mounted on a common shaft to operate in synchronism.
机译:一种滴灌软管,其中,调节通道的出口各包括一个纵向狭缝(46、47)。缝隙足够长,薄膜也具有足够的柔韧性,因此在对软管加压时,水会从出口滴下。缝隙足够短,薄膜也足够坚硬,因此当软管减压时,出口会完全关闭,从而防止堵塞。用于制造软管的设备包括:出口成形轮(20),在其外围具有刀刃(30);背衬轮(26),其与出口成形轮接合以在其间建立第一辊隙(28),并具有周向狭缝。刀片安装在第一辊隙中的(32)和肋形成轮(22),在其圆周上具有压痕,该压痕限定了肋的所需轨迹图案。出口形成轮和肋形成轮安装在公共轴上以同步操作。

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