B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/73
B22D 17/12 (2006.01) B22D 17/22 (2006.01) B22D 27/11 (2006.01)
Patent
CA 1296862
- 28 - VERTICAL INJECTION APPARATUS ABSTRACT OF THE INVENTION A vertical injection apparatus is incorporated with a parting mold including upper and lower mold halves and defining a cavity to be filled with a melt. The lower mold half has a vertical sleeve hole at the outer side thereof and a vertical melt passage hole communicating between the cavity and the sleeve hole. The upper mold half has a vertically extending pin hole coaxial with the melt passage hole and open to the cavity and provided with a vertically extending mold pin movable through the pin hole. At least an upper part of the melt passage hole in the vicinity of the cavity has a diameter smaller than that of the sleeve hole but slightly large than the of the mold pin. Preferably, the cavity is designed for a disk wheel having a central hole through which the mold pin is allowed to pass, and the lower mold half forms a contoured inner surface corresponding to a decorated surface of the disk wheel. After the mlet in a sleeve is injected by a plunger into the cavity through the melt passage hole, the mold pin is forced to move to a lower position so that a lower free end portion of the mold pin is inserted into the melt passage hole through the cavity, thus urging the melt filled in the cavity and the melt passage hole against the surface of the cavity.
553087
Ishimoto Kenji
Kawabata Kouji
Goudreau Gage Dubuc
Ube Industries Ltd.
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