Mold assembly using inserts

Details Mold assembly using inserts Mold assembly using inserts

B - Operations, Transporting

29

C

B29C 45/04 (2006.01) B29C 45/20 (2006.01) B29C 45/26 (2006.01) B29C 45/27 (2006.01) B29C 47/72 (2006.01)

Patent

CA 2681129

An injection molding machine is provided, including a nozzle assembly (54) having a channel for conveying a fluid. At least one cavity insert (102, 200, 402) is removably mounted within a cavity plate (48, 148), the at least one cavity insert (102, 200, 402) defining a mold cavity (92, 192, 292), and a first portion of a gate (174) for communicating the fluid between the nozzle assembly (54) and the mold cavity (92, 192, 292). A gate insert (188) defines a receptacle for the nozzle assembly (54), and further defining a second portion of the gate (174). The gate insert (188) is floatably retained between the nozzle assembly (54) and the at least one cavity insert (102, 200, 402). Preferably, the gate insert (188) is retained by a gate insert plate (146) that is disposed between the cavity plate (48, 148) and the nozzle assembly (54).

Machine de moulage par injection comprenant un ensemble buse (54) qui a une voie pour l'acheminement d'un liquide. Au moins un insert de cavité (102, 200, 402) est monté de manière amovible dans une plaque de cavité (48, 148), l'insert de cavité (102, 200, 402) formant une cavité de moule (92, 192, 292) et une première partie d'une porte (174) pour la circulation du liquide entre l'ensemble buse (54) et la cavité du moule (92, 192, 292). Un insert de porte (188) forme un réceptacle pour l'ensemble buse (54) et également une seconde partie de la porte (174). L'insert de porte (188) est retenu de manière flottante entre l'ensemble buse (54) et l'insert de cavité (102, 200, 402). De préférence, l'insert de porte (188) est retenu par une plaque d'insert de porte (146) qui est disposée entre la plaque de cavité (48, 148) et l'ensemble buse (54).

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