Induction heating coil unit for manifold in hot runner mold
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United States of America Patent
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-
Jun 25, 2002
Grant Date -
Nov 8, 2001
app pub date -
Jun 25, 2001
filing date -
May 12, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.
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