JP2934301B2 - Centralized control equipment for injection molding machines - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a centralized control device for an injection molding machine.

2. Description of the Related Art A centralized control device that collectively monitors and manages operating states of a plurality of injection molding machines provided in a factory is already known.

The centralized management device stores an alarm release procedure for releasing an alarm (abnormality) for an alarm output when an operation abnormality occurs in each injection molding machine, and releases the stored alarm release when an alarm occurs. The procedure is displayed on the display device.

Since the alarm of the injection molding machine is unique to the injection molding machine and is the same regardless of the factory where it is installed, it is easy to store in advance the contents of the alarm and the alarm canceling procedure in the central control device. However, the alarms (abnormalities) that occur at the factory where injection molding is performed are broadly divided into alarms that are generated by the injection molding machine itself, alarms that are generated by peripheral devices connected to the injection molding machine, and various facilities (power supply, factory) of the factory. There is an alarm generated from water supply, fire alarm, etc.), and the operation of the injection molding machine is stopped by an alarm other than the alarm generated from the injection molding machine itself. Therefore, in order to restart the operation of the injection molding machine whose operation has been stopped due to the alarms generated from these peripheral devices and various facilities in the factory, the contents of the alarm (abnormality) and the procedure for releasing the alarm for the alarm (abnormality) must be centralized in advance. It is convenient to store it in the management device.

However, an alarm canceling procedure for alarms generated from peripheral devices and various facilities in a factory differs from factory to factory, and cannot be uniformly stored in a centralized management device like an injection molding machine. For this reason, conventionally, for the alarms generated from such peripheral devices and various types of equipment in factories, the centralized management device does not store the contents of the alarms (abnormalities) and the alarm canceling procedure. On the other hand, a method of storing a standard alarm release procedure is adopted. Alternatively, a system is adopted in which, when a centralized management device is installed in a factory, an alarm canceling procedure is stored in accordance with the standard of the factory.

Since the alarm (abnormality) generated from the injection molding machine is uniform regardless of the factory where the injection molding machine is arranged, the contents of the alarm and the procedure for releasing the alarm are stored in the centralized management device in advance. However, alarms generated from peripheral devices and various equipment in factories vary from factory to factory. Even if the standard alarm contents and their clearing procedures are stored, if they differ from this standard, Nothing will work. Even if the release procedure is stored in accordance with the factory standard, the stored release procedure does not function at all when the factory standard is changed.
Or it has the disadvantage of giving incorrect information.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a centralized management device for an injection molding machine that can rewrite and change the contents of an alarm stored in the centralized management device and a procedure for releasing the alarm.

Means for Solving the Problems The present invention provides an alarm code indicating an abnormality of an injection molding machine and a peripheral device generated from an injection molding machine, a write for storing an alarm content and an alarm canceling procedure for each alarm signal generated from various facilities. The problem has been solved by providing, in a centralized management device, a non-volatile storage device that can be read and erased, and a unit that changes and rewrites alarm contents and an alarm release procedure stored in the storage device.

Operation When an abnormality occurs in the injection molding machine or a peripheral device connected to the injection molding machine from the injection molding machine, the injection molding machine transmits an alarm code indicating the abnormality to the central control device. The central control device detects the alarm code and displays the contents of the alarm stored in the storage device and the alarm release procedure on the display device. Similarly, when the central control device receives an alarm signal from each facility in the factory, the content of the alarm is displayed, and the alarm release procedure is displayed.

Furthermore, when changing peripheral equipment or changing the factory standards, when changing the alarm reset procedure, set the central control device to the alarm reset procedure change mode, and write the alarm contents or alarm reset procedure stored in the above storage device. Replacement, the peripheral device in use, and the alarm release procedure according to the standard of the factory at that time are stored in the storage device.

Embodiment FIG. 2 is a block diagram of one embodiment of the present invention. In the figure, reference numeral 1 denotes a central management device, which is a processor (CPU) 10 for performing various processes, a ROM for storing programs for various processes performed by the processor 10, a RAM for temporarily storing data in various processes, and a data storage device. Memory 1 that can write, read, and erase data and is composed of nonvolatile RAM
1. An external storage device 14 composed of a magnetic disk or a floppy disk, which is a nonvolatile storage device capable of writing, reading, and erasing data for storing an alarm management table and the like, which will be described later. CR that has a keyboard etc. for inputting and displays data etc.
It comprises a manual data input device (CRT / MDI) 12 with a CRT display device having a T display device, an input / output circuit 13 and the like, and each element is connected by a bus.

The input / output circuit 13 is connected to a power failure detection device for the factory power supply 2, a water supply detection device for the factory water supply 3, a fire alarm 4, and injection molding machines 5-1 to 5-n. The central control device 1 can receive the signal and the fire detection signal. Centralized management of alarm codes generated from each injection molding machine when an abnormality occurs in each of the injection molding machines 5-1 to 5-n and peripheral devices 6-1 to 6-n connected to each injection molding machine. The device 1 can receive data via the input / output circuit 13.

FIG. 3 is an explanatory diagram of an alarm management table provided in the external storage device 14, and shows various equipment of the factory input to the centralized management device 1, that is, a power failure signal from the factory power supply 2 and a water cutoff signal from the factory water supply 3. A corresponding to a fire occurrence detection signal from the fire alarm 4 and an alarm code transmitted from each of the injection molding machines 5-1 to 5-n.
For each Nj ... alarm contents AM1, AM2 ... AMj ..., alarm (abnormal) cancellation procedure AR11-ARn1, AR12-ARn2 ... AR1j-ARn
j ... is stored.

For example, the alarm number AN1 is made to correspond to the power failure signal from the factory power source 2, the factory power failure is stored as the alarm content AM1, and the alarm canceling procedure AR11 to ARn1 is performed by the injection molding machine after the factory power failure. To memorize the recovery procedure. Similarly, the alarm number AN2 is associated with the interruption signal from the factory water supply 3, the alarm number AN3 is associated with the signal from the fire alarm 4, and each of the injection molding machines 5-1 to 5-n
The alarm codes indicating abnormalities of the injection molding machine and peripheral devices sent from the company are set to correspond to the alarm numbers after AN4.

Then, such an alarm management table is created in advance and stored in an external storage device (for example, a magnetic disk) 14, or the alarm management table is created by an alarm release procedure change process described later. Especially,
Alarms for abnormal operation of the injection molding machine are automatically determined and not changed once the injection molding machine is determined.
It is preferable that the injection molding machine and this central control device be set and stored when the manufacturer ships it. Further, when the standard of the factory where the injection molding machine and the centralized control device are installed and the peripheral equipment are determined, the alarm management table is created by an alarm canceling procedure change process described later.

FIG. 1 is a flowchart of a process performed by the processor 10 when the central management device 1 is set to the alarm canceling procedure change processing mode. The alarm canceling procedure is performed when a new alarm management table is created or when the contents of the alarm management table are changed. In the change processing mode, the processor starts the processing shown in FIG. 1, first displays a message for inquiring the alarm number on the CRT display device, and waits for the input of the number from the keyboard (steps S1 and S2). When the operator inputs an alarm number x to be set or changed, the alarm number x is stored in a register j (step S3), and the alarm content AM of the alarm number stored in the register j from the alarm management table is read.
Read j, display it on the CRT screen, and display a message asking whether to change the alarm content (step S4). The operator inputs the content of the alarm from the keyboard when changing the content of the alarm, and operates the pass key provided for shifting to the next item when not changing the content. The processor 10 detects that the data input key has been operated, and stores the input alarm content y in the alarm content address one AMj of the alarm number stored in the register j of the alarm management table (step S6, step S6).
S7), and proceed to step S8. If the operation of the passkey is detected, the process proceeds to step S8 without changing the alarm content, the index k is set to "1", and the alarm release procedure k of the alarm number stored in the register j is performed.
Is displayed, and a change inquiry message is displayed (step S9). Next, it is determined whether the pass key has been operated or the data input z for changing the alarm canceling procedure k has been input (steps S10 and S11). When the operation of the pass key has been detected, the process proceeds to step S17. And
The index k is incremented by "1", and the routine goes to Step S9. If there is a data input z, the input data z
Is stored in the address ARjk of the alarm management table determined by the register j and the index k (step S12), an inquiry as to whether or not to continue inputting the alarm release procedure is displayed (step S13), and when the operator inputs "YES",
The process proceeds to S17, and the index k is incremented by “1” and step S
Return to 9. When the operator inputs "NO", an inquiry as to whether or not there is another alarm number to be changed is displayed on the CRT screen (step S15), and if the operator inputs "YES", the process returns to step S1 and returns to "NO". Is input, the alarm canceling procedure change process ends.

As described above, the alarm management table of the external storage device 14 of the centralized management device stores the release procedure for each alarm for an abnormality that has occurred in the injection molding machine and its peripheral devices as well as for the alarm generated from various facilities in the factory in FIG. Are set or changed as shown in (1) to obtain an alarm canceling procedure that matches the injection molding machine, peripheral equipment, and various facilities in the factory.

With the alarm management table created and corrected in this way and stored in the centralized management device 1, the injection molding machine is operated, and an alarm code indicating an abnormality of the injection molding machine itself or an abnormality of a peripheral device from the injection molding machine, or When an alarm signal is input to the central control device from each facility in the factory,
The processor 10 displays the input alarm code or alarm number corresponding to the alarm signal stored in the alarm management table of the external storage device 14, the content of the alarm, and the alarm canceling procedure on the CRT display device.

In the present embodiment, the alarm management table is stored in an external storage device such as a magnetic disk. However, if the nonvolatile RAM of the memory 11 has a margin, the alarm management table is stored in the nonvolatile memory of the memory 11. It may be provided in the RAM.

Advantageous Effects of the Invention The present invention concentrates on the contents of an alarm for an injection molding machine and peripheral devices connected to the injection molding machine, as well as alarms (alarm signals or alarm codes) output from various facilities in a factory, and an alarm reset procedure. The data in the management device is stored in a non-volatile storage device from which data can be written, read, and erased, and the contents stored in the storage device can be changed. Therefore, peripheral devices are changed or factory standards are changed. In this case, the alarm canceling procedure can be freely changed in accordance with the changed peripheral device or factory standard, and the utility of the centralized management device can be enhanced.

[Brief description of the drawings]

FIG. 1 is a flowchart of an alarm canceling procedure change process in one embodiment of the present invention, FIG. 2 is a block diagram of the embodiment, and FIG. 3 is an explanatory diagram of an alarm management table. 1: Centralized control device, 2: Factory power supply, 3: Factory water supply, 4:
Fire alarm, 5-1 to 5-n ... injection molding machine, 6-1 to 6
-N ... peripheral devices.

Continuing from the front page (72) Inventor Tetsuaki Neko 3580 Kobaba, Oshino-za, Oshino-mura, Minamitsuru-gun, Yamanashi Prefecture FANUC CORPORATION Product Development Laboratory (56) References -16111 (JP, U)

Claims (1)

(57) [Claims] An injection molding machine connected to a plurality of injection molding machines in a factory, connected to various facilities in the factory related to the injection molding machines, and output from the various equipments. A centralized control device for an injection molding machine that detects an alarm signal indicating an abnormality of a device or any of the above-mentioned various facilities, and displays an alarm content and an alarm canceling procedure on a display device. A nonvolatile storage device that can store, write, read, and erase alarm contents and an alarm release procedure for each alarm signal generated from various equipment, and change and write the alarm contents and the alarm release procedure stored in the above storage device. Centralized control device for an injection molding machine, comprising: