Tight pitch nozzle with individual valve gate control

Details Tight pitch nozzle with individual valve gate control Tight pitch nozzle with individual valve gate control

B - Operations, Transporting

29

C

B29C 45/20 (2006.01) B29C 45/00 (2006.01) B29C 45/03 (2006.01) B29C 45/16 (2006.01) B29C 45/28 (2006.01)

Patent

CA 2448129

An injection molding system is disclosed. The system includes a multiple valve gated nozzle. The flow through each valve gate is determined by individually operated valve pins. Each valve pin is independently controlled by a separate actuation unit. In order to achieve a tight pitch between the valve pins, the actuation units are placed in a stacked configuration, with the valve pin controlled by the upper actuation unit passing through the lower actuation unit. The valve pin of the lower actuation unit is offset from a center of the upper actuation unit to allow for the unimpeded passage of the valve pin from the upper actuation unit through the lower actuation unit.

La présente divulgation porte sur un dispositif de moulage par injection. Ce dispositif comprend une buse à obturateurs multiples. L'écoulement à travers chaque obturateur est déterminé par des chevilles d'obturateurs distinctes. Chaque cheville est commandée de manière indépendante par un organe de déclenchement distinct. Afin d'obtenir un pas étroit entre les chevilles d'obturateurs, les organes de déclenchement sont empilés, avec la cheville d'obturation commandée par l'organe de déclenchement supérieur traversant l'organe de déclenchement supérieur. La cheville d'obturateur de l'organe de déclenchement inférieur est décentrée de l'organe de déclenchement supérieur pour assurer le passage libre de la cheville d'obturateur, de l'organe de déclenchement supérieur à travers l'organe de déclenchement inférieur.

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