Stack mold transfer device

摘要

Stack mold transfer device are disclosed that include first and second transfer members having respective first and second transfer channels, first and second valve seats, and first and second valve members. The first valve member defining a flow portion and a first sealing surface and the second valve member defining a second sealing surface and a receiving pocket. When the first and second transfer members are in an engaged configuration, the first and second transfer channels form a common transfer channel. When the transfer device is in a closed-flow configuration, the flow of molding material is blocked, and when the transfer device is in an open-flow configuration, the first sealing surface of the first valve member is slidably received in the receiving pocket of the second valve member and the flow portion of the first valve member is positioned to allow molding material flow within the common transfer channel.

主权项

1. A stack mold transfer device actuatable between an open-flow configuration and a closed-flow configuration, the stack mold transfer device comprising:
a first transfer member having a first transfer channel, a first valve seat, and a first valve member slidably disposed within and extending through the first transfer channel, the first valve member having a flow portion and a first valve sealing surface defined along an outer circumferential length of a first end of the first valve member, with a second end of the first valve member being operably coupled to a first actuator; and a second transfer member having a second transfer channel, a second valve seat, and a second valve member slidably disposed within and extending through the second transfer channel, the second valve member having a second sealing surface and a receiving pocket extending within a first end of the second valve member, wherein the receiving pocket has an inner diameter sized to slidably receive the first valve sealing surface of the first end of the first valve member, wherein when the first transfer member and the second transfer member are in an engaged configuration the first transfer channel of the first transfer member and the second transfer channel of the second transfer member form a common transfer channel, and wherein when the transfer device is in the closed-flow configuration, the first valve sealing surface engages the first valve seat and the second valve sealing surface engages the second valve seat to block a molding material flow within the common transfer channel, and wherein when the transfer device is in the open-flow configuration the first ends of the first and second valve members are actuated to slide together into the second transfer channel,
whereby the first valve sealing surface is disengaged from the first valve seat and the second valve sealing surface is disengaged from the second valve seat,whereby the first valve sealing surface surrounding the first end of the first valve member is slidably received in the receiving pocket of the second valve member to be overlapped thereby and to create a longitudinally-extending, circumferential sealing area therebetween, andwhereby the flow portion of the first valve member is positioned to allow the molding material flow within the common transfer channel.