Injection moulding system and a spacer member

Details Injection moulding system and a spacer member Injection moulding system and a spacer member

B - Operations, Transporting

29

C

B29C 45/17 (2006.01) B29C 45/27 (2006.01)

Patent

CA 2204965

An injection molding system having a manifold element (5) carrying a melt passage (2), said manifold element (5) is connected to an inlet (3) at one end for receiving molten material and at the other end a nozzle (7) opening into a gate (21) of the mold, said manifold element (5) is heated, and is spaced from relatively large bodies, such as clamped plate elements (14) or cavity plate elements (11) which are less heated,unheated or cooled by relatively thin-walled spacer members (12), said spacer members (12), having two oppositely directed bearing surfaces the one bearing against said manifold elements (5), the other bearing against said body, and a relatively thin-walled wall part (17) extends between said bearing surfaces, said wall parts (7) having a curvature to be resilient for compression and extension in the direction from the one bearing surface towards the other bearing surface.

Système de moulage par injection se composant d'un collecteur (5) comportant un passage pour la matière fondue (2), ledit collecteur (5) étant relié à une entrée (3) à une extrémité pour recevoir la matière fondue et à l'autre extrémité à une buse (7) formant une attaque de coulée (21) dans le moule. Ledit collecteur (5) est chauffé et espacé de corps de taille relativement importante, par exemple des plaques à pinces (14) ou des plaques de matrices (11), qui sont moins chauffées, non chauffées ou refroidies par des éléments d'espacement à parois relativement minces (12), lesdits éléments d'espacement (12) comportant deux surfaces d'appui orientées dans des directions opposées, l'une s'appuyant sur ledit collecteur (5) et l'autre sur ledit corps, et une section (17) à parois relativement minces se trouvant entre lesdites surfaces d'appui, ladite section étant recourbée de manière à résister à la compression et à l'étirement dans la direction s'éloignant d'une surface d'appui vers l'autre surface d'appui.

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