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    • 7. 发明申请
    • Multi-position control cylinder for hot runners of injection molding machines and method of manufacturing such cylinder
    • 注塑机热流道多位控制缸及其制造方法
    • US20030099735A1
    • 2003-05-29
    • US10167576
    • 2002-06-13
    • Yudo Co. Ltd
    • Young-Hee Yu
    • B29C045/76
    • F15B11/123B29C45/1603B29C45/281B29C2045/2841Y10T29/49826
    • A multi-position control cylinder for hot runners of injection molding machines is disclosed. This multi-position control cylinder has a multi-stage hole formed in a unit body, a first cylinder seated in the lower part of the multi-stage hole, and a first piston set in the first cylinder. In addition, a second cylinder is seated in the multi-stage hole at a position above the first cylinder, with a second piston set in the second cylinder. A valve pin is coupled to the second piston using a valve pin coupling member such that the valve pin extends downward from the second piston while passing through the first piston, with the lower portion of the valve pin inserted into the upper portion of the first piston. An anti-vacuum gap is formed between the first piston and the valve pin coupling member. A cylinder head covers the top of the multi-stage hole at a position above the second piston. This multi-position control cylinder has a simple construction, accomplishes a reliable operation, and easily increases the number of cylinders seated in the multi-stage hole by seating a desired number of additional cylinders with pistons in the multi-stage hole.
    • 公开了一种用于注射成型机的热流道的多位置控制筒。 该多位置控制筒具有形成在单元体中的多级孔,位于多级孔的下部的第一缸和设置在第一缸中的第一活塞。 此外,第二气缸在第一气缸上方的位置处放置在多级孔中,第二活塞设置在第二气缸中。 阀销使用阀销联接构件联接到第二活塞,使得阀销从第二活塞向下延伸,同时穿过第一活塞,阀销的下部插入第一活塞的上部 。 在第一活塞和阀销联接构件之间形成防真空间隙。 气缸盖在第二活塞上方的位置处覆盖多级孔的顶部。 该多位置控制气缸具有简单的结构,实现可靠的操作,并且通过将期望数量的具有活塞的附加气缸放置在多级孔中容易地增加了位于多级孔中的气缸的数量。
    • 8. 发明授权
    • Dual stroke cylinder
    • 双冲程气缸
    • US06343537B1
    • 2002-02-05
    • US09702670
    • 2000-11-01
    • Kenji IidaAkihiro Hirano
    • Kenji IidaAkihiro Hirano
    • F15B1524
    • F15B11/123F15B15/1409
    • A piston 14 for sliding in a cylinder 12, a rod 16 of the piston 14, and a sleeve 15 fitted over the rod 16 and passing through a rod hole 13 of the cylinder are provided. A lock portion 18 is provided to an outer periphery of a tip end portion of the rod 16. The sleeve 15 having an outer peripheral face for airtightly sliding in the rod hole 13 in the cylinder 12 and an inner peripheral face for airtightly sliding on an outer peripheral face of the rod 16 is provided with an engaging portion 22 on an inner end side to be engaged with an inside of the rod hole 13 of the cylinder and an engaging portion 23 at an outer end side to be engaged with the lock portion 18 of the rod 16. Supply/discharge ports 18A and 19A for supplying and discharging pressure fluid to and from pressure chambers 18 and 19 on opposite sides of the piston 14 in the cylinder are provided and intermediate stop is possible by supplying and discharging pressure fluid to and from the ports.
    • 设置有用于在气缸12中滑动的活塞14,活塞14的杆16和安装在杆16上并穿过气缸的杆孔13的套筒15。 锁定部18设置在杆16的前端部的外周。套筒15具有用于气缸12中的杆孔13中气密地滑动的外周面和用于气缸12内的气密滑动的内周面 杆16的外周面在内端侧设置有与筒的杆孔13的内侧接合的接合部22和在外端侧的接合部23,以与锁定部接合 提供用于向缸内活塞14的相对侧的压力室18和19供应和排出压力流体的供给/排出口18A和19A,并且通过供给和排出压力流体可以进行中间停止 往返港口。