US Patent No. 9,061,455

INJECTION NOZZLE TOUCH MECHANISM FOR AN INJECTION MOLDING MACHINE


Patent No. 9,061,455
Issue Date June 23, 2015
Title Injection Nozzle Touch Mechanism For An Injection Molding Machine
Inventorship Mitsushi Yoshioka, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 9,061,455

1. A nozzle touch mechanism of an injection molding machine, configured to press a nozzle on a distal end of a cylinder against
a mold attached to a stationary platen with a predetermined nozzle touch force, wherein
the stationary platen is secured to a base structure of the injection molding machine such that a front plate of an injection
device is located opposite the stationary platen and the cylinder is secured to the front plate, and the nozzle touch mechanism
of the injection molding machine comprises:

an injection device advancing/retracting unit configured to advance and retract the injection device; and
a plurality of connecting members arranged at the sides of the cylinder and provided to position the injection device, and
wherein

one of the stationary platen and the connecting members is provided with a magnetism generating unit comprising a permanent
magnet, and the other with a magnetic body, and

the magnetism generating unit is configured to generate magnetism to attract the magnetic body, thereby bringing the nozzle
into contact with the mold.