Patent ID: 7815431
Filing Date: 2010-10-19
Classification: B29C

Abstract:
1. A drive system ( 10 ) for shutoff needles in an injection mold fitted with needle shutoff nozzles, comprising an elevation drive element ( 20 ) to which is affixed at least two shutoff needles ( 16 ) of two needle shutoff nozzles and which are displaceable between two control rails ( 30 ) supported in longitudinally displaceable manner in a first direction (R 1 ) in a second direction (R 2 ) transverse to the first direction (R 1 ), with at least two glide elements ( 50 ), said of two glide elements converting a displacement of the control rails ( 30 ) along the first direction (R 1 ) into a vertical excursion of the elevation drive element ( 20 ) in the second direction (R 2 ), characterized in that the drive element ( in that the glide elements ( wherein at least the control rails (