B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/76 (2006.01) B29C 45/28 (2006.01)
Patent
CA 2216983
The invention relates to a valve-gated injection moulding device in which an actuating device of the valve pin comprises a sliding member having its walls in sliding engagement with an axial guide track. The sliding member comprises a radial opening defined by an upper and a lower contact surface. A free end of an actuating lever having two curved actuating surfaces extends radially into the opening of the sliding member. By means of this construction, a compact and accurate actuating device is provided which reduces radial forces on the valve pin, such that it can be operated without friction or wear. Residual radial forces are taken up by the sliding member. The stroke of the actuating device can be adjusted after mounting in a cavity plate of an injection moulding device.
Cette invention concerne un moule à injection à obturateur dont l'actionneur d'aiguille doseuse comprend un élément coulissant dans un guide axial. L'élément coulissant comporte une ouverture radiale définie par des surfaces de contact supérieure et inférieure. L'extrémité libre d'un levier de commande présentant deux surfaces de commande courbes se prolonge radialement dans l'ouverture de l'élément coulissant. Cette construction donne un dispositif de commande compact et précis qui atténue les forces exercées sur l'aiguille doseuse, qui élimine le frottement et l'usure. Les forces radiales résiduelles sont absorbées par l'élément coulissant. La course du dispositif de commande peut être réglée après montage sur la plaque de serrage du moule à injection.
Eurotool Beheer B.v.
Mccarthy Tetrault Llp
LandOfFree
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