Patent ID: 7033164

Claim:
A nozzle-contacting device of an injection molding machine, comprising: an injection module set on a sliding trough and having a nozzle set at a front end thereof; a nozzle-adjusting device set on a lathe bed for adjusting a compressing clearance; and a mold-holding structure set on said lathe bed and comprising an adjusting plate and a mold-clamping structure, wherein said mold-clamping structure is set on plural tie rods, said mold is fixed on said adjusting plate which is sleeved on said plural tie rods, and one or more drivers which are set on a front end of said mold-clamping structure is penetrating a dead plate of said molding-holding structure for connection to said adjusting plate; wherein said injection module is set on a front end of said dead plate of said mold-holding structure, said dead plate has a perforation set on a centre thereof corresponding to a position of said nozzle of said injection module, when adjusting said compressing clearance, said nozzle-adjusting device pushes said injection module set on said sliding trough to slide toward said mold-holding structure and against said mold for obtaining said compressing clearance between said adjusting plate and said dead plate, and said mold-clamping structure produces a clamping force for forcing said nozzle against said mold and takes up said compressing clearance for producing a nozzle-contacting force so as to inject a plastic from said injection module into a mold cavity of said mold through said nozzle.