HOT RUNNER ATTACHING STRUCTURE OF INJECTION MOLDING MACHINE AND HOT RUNNER ATTACHING METHOD USING IT

摘要

PROBLEM TO BE SOLVED: To facilitate the attachment of a hot runner part to a fixed template 1 or maintenance thereof and to eliminate the operation failure of a valve stem 24 caused by the thermal expansion of a manifold 8.;SOLUTION: The hot runner of this injection molding machine is constituted so that the nozzle main body 21 on the underside of the manifold 8 is supported on the manifold 8 in a freely horizontally movable manner through a set block 23, which supports the valve stem drive means 25 on the upper side of the manifold 8, along with the nozzle collar 22 for supporting the nozzle body 21 by connecting the nozzle collar 22 and the set block 23. The valve stem 24 of the nozzle body 21 is connected to the drive means 25 through the manifold 8 and the nozzle body 21 is located to the nozzle orifice 39 of the template 1 by fitting the nozzle collar 22 on the fitting hole 38 of the template 1 to join the back plate 4 for supporting the manifold 8 to the template 1.;COPYRIGHT: (C)2005,JPO&NCIPI