Remote diagnostic system

Patent metadata

Field	Value
Publication number	US-12042971-B2
Application number	US-202218071103-A
Country	US
Kind code	B2
Filing date	Nov 29, 2022
Priority date	Apr 27, 2018
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

In the present invention, constructed is a highly reliable system that does not allow unforeseen conditions to occur in the remote diagnosis of a clamp device. All combinations of status of a state detection switch mounted on a clamp device are anticipated in advance by a recursive method, and the states are defined with no omissions. A control unit 9 includes: a main body memory 9 c that stores the ON/OFF state of a state switch together with the status of an injection molding machine main body, the clamp status and time information; and a main body communication unit 9 d which is capable of short-range wireless communication. A message diagnosing a failure is stored in a smartphone 12 for all combinations of the ON/OFF state of the state detection switch for each of the following cases: whether in mold replacement mode or not; and whether a clamp device is in a clamped state or an unclamped state, or in a state other than the forgoing. The history of the ON/OFF state of the state detection switch with respect to the status of the main body and the clamp status is read from the main body memory 9 c by wireless communication, and a corresponding message is displayed.

First claim

The invention claimed is:

1. A remote diagnostic system of a mold handling device loaded with a magnet platen mounting including a magnet clamp mounted on a platen, said magnet platen mounting including a proximity sensor for detecting a proximity/separation state with a mold provided on a surface of the magnet clamp; a current sensor for detecting current of each magnetizing coil operably connected to each of a plurality of magnet blocks of the magnet clamp; a sensor coil for detecting an attractive force; and a current detector for measuring current for driving the plurality of magnet blocks, wherein said remote diagnostic system, comprising:
a control unit having a main body side memory for determining normal/abnormal state at a time with respect to each of locking instruction and releasing instruction whether release completion and lock completion are normal or abnormal based on detection values detected by the sensor coil and the current detector, and storing together with information as to a status of a main body of the mold handling device of whether or not the main body of the mold handling device is in a mold replacement mode, information as to whether the magnet clamp is in a clamped state or an unclamped state or other state, and time information; and
a terminal device comprising:
a terminal side memory, said terminal side memory being configured, as to each case of the status of the main body of the mold handling device and the information as to whether the magnet clamp is in the clamped state or the unclamped state or other state, to store messages for diagnosing failures for all combinations of the normal/abnormal state and the proximity/separation state of the proximity sensor, anticipated in advance by a recursive method without omission;
a terminal side communication unit for reading the status of the main body of the mold handling device and the normal/abnormal state and histories of the proximity/separation state by a wireless communication or a wired communication; and
a display unit for obtaining and displaying messages corresponding to the read histories from the terminal side memory.

Assignees

• Kosmek Ltd

Inventors

• Yoshida Masakazu

Classifications

• B29C2945/76709

  clamping or closing drive means · CPC title

• B29C2945/76702

  Closure or clamping device · CPC title

• B29C2945/76568

  Position · CPC title

• B29C2945/76394

  Mould opening · CPC title

• B29C2945/76387

  Mould closing · CPC title