| 摘要 |
A bearing arrangement for a centrifugation injection mold, comprising an upper mold portion ( 10 ) and a lower mold portion ( 20 ), which are respectively and rotatively mounted to an upper bearing ( 30 ) and to a lower bearing ( 40 ), the latter comprising: a first flat ring ( 41 ) affixed to a machine structure (E) and presenting a radial gap that is internal in relation to the lower mold portion ( 20 ); an annular cage ( 42 ) bearing spheres ( 44 ) seated on the first flat ring ( 41 ), said annular cage ( 42 ) presenting radial gaps that are external and internal in relation to the machine structure (E) and to the lower mold portion ( 20 ), respectively; and a second flat ring ( 45 ) inferiorly seated on the spheres ( 44 ) of the annular cage ( 42 ) and maintaining radial gaps that are external and internal in relation to the machine structure (E) and to the lower mold portion ( 20 ), respectively, axially bearing the latter. The lower mold portion ( 20 ) incorporates an annular conical seat ( 25 ) on which is seated, when the mold (M) is taken to the closed position, an annular conical guide ( 15 ) incorporated to the upper mold portion ( 10 ).
|
