JPH01257021A - Control device of injection molding machine - Google Patents

Abstract

PURPOSE:To obtain a compact control device of an injection molding machine by a method wherein an input device is capable of performing letter input, a display device is displayable of data or information of every mold other than a working condition of the injection molding machine and the data or the information is storable into a memory device. CONSTITUTION:A display device 10 is connected with a controller 12 of CPU, a numerical input key and functional selection key of input devices are arranged on a setting panel 14 and the panel 14 is connected with the controller 12. A connecting device 16 of a connecting device of an IC card is connected with the controller 12 through an interface 18. The IC card 20 of a memory device is provided every mold and a working condition of a molding machine of a corresponding mold, a kind of a used molding material consumption of a material per unit hour, a drying temperature/hour of the material, a name of a molded product, a code number of a molded product, mold's background and molding know-how are stored in a RAM built in the IC card 20. Since data which is unable to express with numerical data is displayable in letters on a display device, the molding machine can be set up at the optimum molding condition.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a control device for an injection molding machine.

(Conventional technology) In the past, operators of injection molding equipment set molding conditions through trial and error every time they replaced a mold, which took time to prepare for start-up and required advanced molding technology. there were.

In order to solve these problems, an electronic control device for injection molding machines was developed.

This control device stores the previous operating condition setting values of the injection molding machine as numerical data in an external memory provided for each mold, and stores that data the next time molding is performed using the mold. This allows for instantaneous setting of operating conditions suitable for the reading mold.

(Problems to be Solved by the Invention) However, the above electronic control device for an injection molding machine has the following problems.

In other words, with conventional control devices, only the previous operating condition setting values are stored, and for example, other than the following operating conditions that the operator wants to know, each mold is stored under conditions that are not fixed in the molding machine control device. Data: (1) Type of molding material used.

(2) Material consumption per level time.

(3) Material drying temperature and time.

(4) Name of the molded product.

(5) Code number of the molded product.

(6) The history and molding know-how of individual molds, such as the tendency for cavities to remain in certain parts of multi-cavity molds or the habit of sink marks on molded products.

(7) Other information specific to each mold.

cannot be memorized. Conventionally, operators took notes in notebooks or wrote them on management cards, but they could be misread, lost, or mismanaged.
There is a problem that searching is complicated and takes time.

Therefore, attempts have been made to automatically set material-related data using another control computer system linked to the injection molding machine and an automatic material supply system, but this increases the scale of the system and increases equipment costs. There is a problem that it becomes uneconomical as the size increases, and the challenge is to solve these problems.

Therefore, an object of the present invention is to provide a compact control device for an injection molding machine that is capable of displaying and storing data for each mold other than the operating conditions of the injection molding machine.

(Means for solving problems) In order to solve the above problems, the present invention includes the following configuration.

That is, in a control device for an injection molding machine that has an input device for inputting data and selecting functions, and a display device for displaying input data or information based on the data, the input device is capable of inputting characters. The present invention is characterized in that the display device can display data or information for each mold other than the operating conditions of the injection molding machine, and the data or information can be stored in a storage means.

(Function) Since data for each mold other than the operating conditions of the injection molding machine can be entered in characters, the data that could not be expressed in numerical data can be displayed in characters on the display device, so the operator can see the display. The molding machine can be set to the optimum molding conditions while

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a system diagram of an injection molding machine according to the present invention.

10 is a CRT which is a display device, and is connected to a controller 12 which is a CPU. Note that the display device 10 can be a plasma display, an EL display, a liquid crystal display, or the like in addition to a CRT.

Reference numeral 14 denotes a setting panel, which is provided with numerical input keys, 1 function selection keys, etc. as an input device, and is connected to the controller 12.

16 is a connection device for an IC card which is an input/output device.

The connecting device 16 is connected to the controller 12 via an interface 18 .

Reference numeral 20 denotes an IC card as a storage means, which is provided for each mold. The R built in this IC card 20
For AM (EFROM or EEPIIOM is also possible), the molding machine operating conditions of the corresponding mold, the type of molding material used, material consumption per unit time, material drying temperature,
The time, the name of the molded product, the code number of the molded product, the history of the mold, molding know-how, and other necessary information are stored.

Next, the setting panel 14 will be described with reference to FIG.

22 is an operation selection key included in the function selection keys, and is a key for selecting various operations such as use/non-use of the ejector, use/non-use of screw back pressure, etc.

24 is a numeric keypad that is used to enter numerical values.

26 is a screen selection key included in the function selection keys, and is a key for selecting a screen to be displayed on the display device 10.

28... is a 7-segment L that displays each item value that you want to always display, such as timer, metering, injection speed, and injection pressure.
This is a display device composed of an ED. In addition, 30...
is an item selection key.

Next, a method of using the control device for an injection molding machine having the system configured as described above will be described.

To set the always-displayed items on each display 28 of the setting panel 14, first press the item selection key 30 to specify the item. Next, a numerical value to be set is input using the numeric keypad 24, and the input is completed using the BNT (ENTER) key 32, and the item is set.

To set items other than the always-displayed items, use the screen selection key 26 to display a predetermined item on the display device 10, enter a numerical value using the cursor keys and numeric keypad 24 (not shown), and set it using the ENT key 32. . Note that the setting values of the always-displayed items and items other than the always-displayed items are stored in the RAM in the controller 12. a, and is written into the RAM in the IC card 2o by keying in the write key 36, and is displayed on the display device 1o.

Here, when inputting data or information for each mold other than the operating conditions of the injection molding apparatus, the memo screen call key 34 of the screen selection keys 26 is pressed. Then, IC card 20
If nothing is written in the corresponding area of RAM, a blank memo screen will be displayed. At that time, controller 1
A shift conversion program and a Romaji-kana conversion program, which are shift means stored in the ROM built in 2, are activated. When the shift conversion program starts, the operation selection key 22, screen selection key 26 and item selection key 3 are pressed.
0... becomes a romaji input key, and uppercase alphaben can be input. The alphabet is shown small on the key head of each key (e.g. Fl-A, F2-
B1 ejector → C1 back pressure-D, VX-X, etc.). Therefore, "Fl", "mold opening/closing", rTMIJ, "pressure switching", "
When you press the "Memo screen" key, the controller 12 displays "A".
The characters "I UEO" are input, and the katakana character "I UEO" is displayed on the display device 10 by the Romaji-kana conversion program. Therefore, after appropriately inputting data and information other than the operating conditions for each mold in the form of character strings, press the ENT key 32 to enter. Then, the contents displayed on this memo screen are stored in the RAM in the controller 12, and are written to the IC card 20 by keying in the write key 36.
RAM is damaged. In the above example, the characters input in Roman characters were converted into kana characters by the Roman character-kana conversion program, but the characters may be displayed in Roman characters (or English) or in hiragana. For example, if you input know-how information such as "Cabi 4 Nokoriyasui, Shojushi POM Shiro, Seihin Code 12345, Seihin Mei Guide Roller" on the memo screen (see Figure 1) while looking at the display device 10, then press the ENT key 32. The controller 12 writes the same content as the memo screen of the display device 10 in a predetermined area, and by keying in the write key 36, the same content is also written in the RAM in the IC card 20 in a predetermined area. Then, when using the same mold, the IC card 2 corresponding to that mold is
o to the connecting device 16 and the memo screen call key 34 is pressed, the contents stored in the IC card 20 are loaded into the RAM of the controller 12, and the same memo screen as the screen in FIG. 1 is displayed on the display device 1o. Ru. Therefore, the operator should "be careful as it is easy to leave cavities in the fourth cavity", "the resin used should be white POM", and "
It can be seen that the product code is 12345, and the product name is Guide Roller.

In the above embodiment, an IC card was used as the storage means for expandability and ease of handling, but it may also be a semiconductor memory or magnetic memory provided for each mold, or a RAM or a disk built into the controller. A designated area may be designated for each mold and used as a storage means. Further, as the key for inputting characters, a dedicated character input key provided separately may be used, or characters may be selected and inputted from a group of characters displayed on the screen using a cursor, a light pen, a touch panel, etc.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. be.

(Effect of the invention) By using the control device for an injection molding machine according to the present invention, the history and molding know-how that differ for each mold can be transferred to the mold used without using notebooks or management cards that are inconvenient to handle. Since the information can be displayed and stored in a corresponding manner, there will be no misreading and management will be easier. In addition, since characters can be input, which was previously impossible, it is easier for the operator to use. Furthermore,
Since there is no need to link it to another computer system, it is compact and economical, and has other advantages.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the system configuration of a control device for an injection molding machine according to the present invention, and FIG. 2 is a front view showing a setting panel. 10...Display device, 12...Controller,
14... Setting panel, 16... Close reading device, 20
...IC card, 22...Operation selection key, 24
...Numeric keypad, 26...Screen selection key, 30.
...Item selection key, 34...Memo screen call key.

Claims (1)

[Scope of Claims] 1. A control device for an injection molding machine having an input device for inputting data and selecting functions, and a display device for displaying input data or information based on the data, the input device comprising: is capable of inputting characters, the display device can display data or information for each mold other than the operating conditions of the injection molding machine, and the data or information can be stored in a storage means. A control device for an injection molding machine. 2. The control device for an injection molding machine according to claim 1, wherein the input device has a shift means for changing a designated key to input characters. 3. The data for each mold other than the operating conditions of the injection molding machine can be displayed on the display device as an independent memo screen, and has a memo screen call key for displaying the memo screen, and the memo screen call 3. The control device for an injection molding machine according to claim 2, wherein the shift means is activated when a key is turned in.