Injection molding apparatus for the production of...

Details Injection molding apparatus for the production of... Injection molding apparatus for the production of...

B - Operations, Transporting

29

D

18/660

B29D 27/00 (1980.01)

Patent

CA 1153519

ABSTRACT OF THE DISCLOSURE: A molding apparatus in which a slider is slidable in an inclined channel into which a passage opens at one side for communication with a mold cavity while a pair of passages open at the opposite side for communication with a plasticating (worm) cylinder and a further cylinder provided with a plunger or piston. The slider has a U-shaped passage, the arms of which are positioned to interconnect both of the passages on the other side of the channel in a position of the slider in which the passage to the mold is blocked but which connects only the accumulating cylinder passage through the bight of the U-shaped passage to the mold in another position of the slider. A check valve is provided in the passage of the worm cylinder.

350017

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