Device and method for producing a tube head, and tube head
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United States of America Patent
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Aug 7, 2018
Grant Date -
Sep 3, 2015
app pub date -
Sep 17, 2013
filing date -
Sep 19, 2012
priority date (Note) -
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Abstract
An injection-molding device for producing at least one tube head having a tube shoulder and a neck formed thereon has a press-out opening comprising a mold that defines a mold cavity and a nozzle that interacts with the mold. The nozzle has a valve needle that can be moved in the nozzle body. The valve needle is surrounded by a first flow channel, through which a first material component can be pressed out. The opening of the nozzle is closed by the valve needle head in a retracted position of the valve needle and released by the valve needle head in an advanced position of the valve needle In the advanced position of the valve needle, an annular outlet opening is formed, which establishes a fluid connection into the mold cavity together with an annular gap of the mold serving as a gate.
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