Mold with wear member

Details Mold with wear member Mold with wear member

1987-07-23

1988-10-04

Woo, Jay H.

Static molds

Container-type molding device

And an inner removable core to form recess or opening

249105, 249175, 425168, 425192R, 425577, B29C 4536

Patent

active

047751304

ABSTRACT:
A mold, typically an injection mold, having a mold core and a mold cavity has centering rib means at its parting line defined on one of the core and cavity, projecting in the closed position into a groove defined by the other of the mold core and cavity in the closed position. By this invention a wear member is removably secured in the groove at a position which is radially inward of the centering rib. The wear member defines a radially outer face that is acutely angled outwardly from the longitudinal axis of the mold relative to the centering rib. The radially inner surface of the centering rib defines a plane parallel to the radially outer face and positioned whereby the radially outer face and radially inner surface abut each other in the closed position. The radially outer surface of the centering rib is acutely angled inwardly relative to the longitudinal axis and centering rib means, the radially outer surface being parallel to and substantially in abutting relation with the radially outer side of the groove in the closed position. The wear member may be designed to endure most of the wear that takes place in the mold centering system during operation. Then, the wear member, which is relatively inexpensive, may be replaced after it is unduly worn, resulting in a great improvement in mold maintenance.

REFERENCES:
patent: 3932085 (1976-01-01), Horbach
patent: 4520991 (1985-06-01), Letica

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