公开(公告)号：US4917902A

公开(公告)日：1990-04-17

申请号：US329729

申请日：1989-03-28

申请人： Gregory H. Slocum ,  Michael F. Hurley ,  Wallace D. Templin ,  Donald W. Schumacher

发明人： Gregory H. Slocum ,  Michael F. Hurley ,  Wallace D. Templin ,  Donald W. Schumacher

IPC分类号： B29C33/00 ,  B29C33/10 ,  B29C67/24

CPC分类号： B29C33/10 ,  B29C33/0038 ,  B29C67/246 ,  Y10S425/812

摘要： The mold broadly consists of an upper and lower mold part. The parts define a mold cavity when the mold is in the closed position. A channel is provided in one of the parts, with the channel completely surrounding the cavity. One upper edge of the channel forms at least a portion of the outer edge of the mold cavity. The channel is at least partially filled with an elastomeric material. A shear plate is attached to the other part in a location opposite the channel. When the mold is in the closed position, the shear plate enters the channel, presses against the elastomeric material and presses against the outer edge of the mold cavity. The shear plate is also provided with one or more tapered slots which allow gases to escape from the mold cavity when the mold is in the closed position.

摘要翻译： 模具广泛地包括上模具和下模具部件。 当模具处于关闭位置时，这些部件限定模具腔。 通道设置在其中一个部件中，通道完全围绕腔体。 通道的一个上边缘形成模腔的外边缘的至少一部分。 通道至少部分地填充有弹性体材料。 剪切板在与通道相对的位置附接到另一部分。 当模具处于关闭位置时，剪切板进入通道，压靠弹性体材料并压靠模腔的外边缘。 剪切板还设置有一个或多个锥形狭槽，当模具处于关闭位置时允许气体从模腔逸出。