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CN108698302A 用于适用于CIP的成形和填充站的注射装置 有权

用于适用于CIP的成形和填充站的注射装置
摘要：
注射装置(1)包括：至少一个注射头(25)，用于将加压液体(10)注射到预成型件(5)中，以及至少一个活塞装置(20、120)，具有活塞体(43)和活塞头(45)，活塞头布置成沿着活塞轴线(A)在活塞体(43)内往复运动，活塞头以液密方式与活塞体的密封部分协作，以流体隔离活塞装置的内腔(47)，活塞体(43)具有入口管道(39)和至少一个出口管道(41、41A、41B)，活塞体(43)包括凹槽部分(60)，其中活塞头(45)不与活塞体(43)液密接触，使得液体可以从内腔流到活塞体的在活塞头(43)的与内腔(47)相对的一侧上延伸的部分，注射装置布置成用于在CIP配置中将活塞头(45)驱动到凹槽部分(60)中。凹槽部分(60)在内腔内在密封部分的在注射方向上延伸的轴向侧中延伸。
摘要（英）：

The injection device (1) comprises: - at least one injection head (25) for injecting a pressurized liquid (10) into a preform (5), and - at least one piston device (20, 120) having a piston body (43),and a piston head (45) arranged to reciprocate in the piston body (43) along a piston axis (A), the piston head cooperating in a liquid tight manner with a sealing portion of the piston body as to fluidicly isolate an inner chamber (47) of the piston device, the piston body (43) having an inlet duct (39) and at least one outlet duct (41, 41A, 41B), the piston body (43) comprising a recess portion(60) wherein the piston head (45) is not in liquid tight contact with the piston body (43) such that liquid can flow from the inner chamber to a part of the piston body extending on the side of the piston head (45) opposite the inner chamber (47), the injection device being arranged for driving the piston head (45) in said recess portion (60) in a CIP configuration. The recess portion (60) extends within the inner chamber, in an axial side of the sealing portion extending in the injection direction.

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