Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1991-05-29
1992-10-20
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
264335, 264540, 264542, 425182, 425527, 425532, 425534, 425537, 425538, 1984684, 414627, 414752, B29C 4904, B29C 4950, B29C 4956, B29C 4970
Patent
active
051567989
ABSTRACT:
An improved part removal assembly (17) particularly for a shuttle-type blow molding machine (10). The part removal assembly includes a plurality of suction cups (95) mounted on a vertically moveable piston (87) that travels along a vertically oriented rodless cylinder (81) and a plurality of suction cups (115) mounted on a horizontally moveable piston (107) that travels along a horizontally oriented rodless cylinder (83). A mold assembly (15) shuttles between an extruder head assembly (11) where a plurality of parisons of molten plastic are captured in mold cavities (25) in the mold assembly, and a blow station assembly (13) where the parisons are blown to form a molded workpiece (31). The mold assembly then opens which causes a flash removal assembly (57) to remove a waste flash portion (55) from a bottom portion (31a) of the workpieces. The bottom of the workpieces are then engaged by the vertically moveable suction cups which lower the workpieces to a position adjacent to a conveyor (117). The horizontally moveable suction cups then engage a side portion (31c) of the workpieces to move the workpieces to the conveyor. The mold assembly preferably provides for up to four cavities which are serviced by a corresponding number of vertically and horizontally moveable suction cups.
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Bekum America Corporation
Silbaugh Jan H.
Timm Catherine
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