B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/50 (2006.01) B29C 45/07 (2006.01)
Patent
CA 2227992
Described is an injection-moulding unit including a plastification unit (17) and a support block (10') designed to detachably hold the plastification unit. Also included is at least one spindle drive (A) with a spindle (31') and nut (78) to bring the nozzle (D) up against the mould (M). The longer section of the spindle (31') or nut (78) is rigidly blocked in rotation in relation to the stationary mould holder (35) and is designed to guide at least the support block (10') along a guiding zone (31a'), which zone is a portion of said longer section of the spindle or nut.
L'invention concerne une unité de moulage par injection comprenant une unité de plastification (17) et un bloc de support (10') dans lequel vient se loger, de façon amovible, ladite unité de plastification. L'unité de moulage par injection présentée comporte également un mécanisme d'entraînement à broche (A) pourvu d'une broche (31') et d'un écrou (78), servant à amener la buse (D) contre le moule (M). La plus longue partie de la broche (31') ou de l'écrou (78) est bloquée en rotation par rapport au porte-moule (64) fixe et est conçue pour guider au moins le bloc de support (10') le long d'une zone de guidage (31a'), cette zone appartenant à ladite partie la plus longue de la broche ou de l'écrou.
Hehl Karl
Macrae & Co.
LandOfFree
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