US Patent No. 9,120,263

CLAMPING DEVICE OF INJECTION MOLDING MACHINE


Patent No. 9,120,263
Issue Date September 01, 2015
Title Clamping Device Of Injection Molding Machine
Inventorship Satoshi Takatsugi, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 9,120,263

1. A clamping device of an injection molding machine in which a rear platen and a fixed platen are coupled by a plurality
of tie bars and corresponding nuts and in which a movable platen is arranged to be guided by the tie bars, the clamping device
comprising:
an adaptor plate which is provided between the fixed platen and a fixed-side mold to be fixed to the fixed platen, and/or
between the movable platen and a movable-side mold to be fixed to the movable platen;

a temperature measuring unit configured to measure a temperature of each of a plurality of divided regions of the adaptor
plate;

a temperature adjusting unit configured to adjust the temperature of each of the plurality of divided regions of the adaptor
plate; and

a control unit configured to cause the temperature adjusting unit to adjust the temperature of each of the plurality of divided
regions of the adaptor plate when a reference value is between a first reference value and a second reference value,

wherein
the first reference value is a value based on which it is determined to perform adjustment by way of temperature control,
and

the second reference value is a value based on which it is determined to perform mechanical adjustment, the mechanical adjustment
comprising adjusting the nuts when the reference value is at or greater than the second reference value.