B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/702
B29C 45/23 (2006.01) B29C 45/17 (2006.01) B29C 45/20 (2006.01)
Patent
CA 1290525
ABSTRACT OF THE DISCLOSURE A plasticizing unit for an injection molding machine includes a carrier block; a plasticizing cylinder securable to the carrier block; an injection nozzle having a nozzle body connected to the front end of the plasticizing cylinder; a discharge outlet at the front end of the nozzle body; a valve needle cooperating with the discharge outlet and having a closed position shutting off the discharge outlet and an open position allowing discharge of material from the plasticizing cylinder through the discharge outlet; force-trans- mitting linkage means being connected to the valve needle; and a power unit for displacing said force-transmitting lin- kage means and the valve needle into the open or power unit for displacing the valve needle into the open or closed position. The nozzle body has a throughgoing, linear, unobstructed nozzle channel extending within the nozzle body from the rear end of the nozzle body to the discharge outlet and being in an axial alignment with the plasticizing cylinder; and a guide channel extending within the nozzle body to the discharge outlet at an acute angle to the nozzle channel. The valve needle is slidably received in the guide channel. At least one of the force-transmitting linkage means is guided respectively connected to the power means by coupling means. The power means comprise an axis of symmetry, which is arranged at an angle to the valve needle and securing means mounted on the carrier block lock respec- tively release the plasticizing cylinder to respectively from the carrier block.
586241
Hehl Karl
Macrae & Co.
LandOfFree
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