JPH0542576A - Method for controlling good/bad of set operation in injection molding machine - Google Patents

Abstract

(57) [Summary] [Purpose] A method for enabling / disabling the setting operation of an injection molding machine, which can specify the setting operation of the molding operation condition only to the selected person and does not require a key switch. To provide. [Structure] In the setting operation disapproval mode, the system disables the operation condition setting (or changing) operation even when the operation condition setting mode image is called. In this setting operation non-permission mode state, the password input mode image is called, and when the operator inputs the personal identification number that matches the pre-registered personal identification number, the system enters the setting operation permission mode that enables the setting of operating conditions. Transition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for enabling / disabling a setting operation in an injection molding machine, and in particular, enabling / disabling a setting operation in an injection molding machine for selectively enabling an operation condition setting operation. Uncontrollable method.

[0002]

2. Description of the Related Art Recent microcomputer-controlled injection molding machines are equipped with a display device such as a color CRT display or a color LCD display, and this display device sets or confirms molding operation conditions for automatic molding operation. Various setting condition display mode images for displaying, various actual measurement data display mode images for displaying actual measurement data of many measurement items during automatic molding operation, automatic inspection items are displayed at regular inspection time A regular inspection mode image for prompting, an alarm mode image for recognizing this when an abnormality occurs, and the like are displayed.

In this type of injection molding machine,
Each time the mold is changed, suitable molding operation condition values according to the individual product shape, resin material, etc. are sequentially input and set interactively with the display image while calling the various setting condition display mode images. Was becoming. Since each set value of the molding operation condition is closely related to the quality of the molded product, the setting operation of the molding operation condition is generally entrusted to an operator who has a lot of knowledge and experience.

[0004]

As described above, it is preferable that an operator having abundant knowledge and experience sets the molding operation conditions, and an inexperienced operator performs the initial setting or sets the suitable operation conditions. It is desired to prevent an unfamiliar operator from unnecessarily changing the molding operation conditions. For this reason, conventionally, a mode in which a person in charge of management, etc. stores a dedicated key switch for permitting the setting operation of the molding operation condition, and the operation condition setting operation can be performed using this dedicated key switch. The setting operation of the molding operation condition is enabled only when the (setting operation permission mode) is set, but there is a problem that the key switch may be lost and the management is troublesome. Further, providing a dedicated key switch leads to cost increase.

The present invention has been made in view of the above points,
The purpose thereof is to provide a controllable / non-controllable setting operation in an injection molding machine which can specify the setting operation of the molding operation condition only to the selected person and does not require a key switch and is easy to manage. Especially.

[0006]

In order to achieve the above-mentioned object, the present invention comprises a display device capable of displaying various mode images, and a desired operating condition setting mode image is displayed on the display screen of this display device. The setting operation permission mode that allows the setting of operating conditions in the above condition and the setting operation non-permission mode that disables the setting of the operating conditions when the desired operating condition setting mode image is displayed on the display screen In the control method of enabling / disabling the setting operation in the injection molding machine, under the setting operation non-permission mode state in which the setting of the operating condition is prohibited, the input mode image of the personal identification number is called before the setting of the operating condition, PIN code input mode The setting operation permission mode that enables the setting operation of the operating condition only when the number that matches the registered PIN code is input in the image display state. It is adapted to transition to.

[0007]

[Function] In the setting operation disapproval mode,
Even if the system calls the operating condition setting mode image,
The operation conditions cannot be set (or changed). Then, in this setting operation disapproval mode state, the password input mode image is called up, and when the operator inputs the password that matches the previously registered password, the system permits the setting operation to enable the setting of operating conditions. Transition to mode.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a simplified block diagram of a control system of an injection molding machine according to this embodiment. In FIG. 1, 1 is a microcomputer (microcomputer) that controls the operation and display control of the entire machine (injection molding machine), 2 is a sensor group including a large number of sensors provided in each part of the machine,
3 is a driver group composed of a large number of driver circuits for driving and controlling a large number of drive sources arranged in each part of the machine, 4 is a key input device arranged in the front part of the machine, 5
Is a display device including a color CRT display, a color LCD, etc. disposed adjacent to the key input device.

The microcomputer 1 shown in FIG.
Control of the entire molding process such as injection operation, mold opening / closing operation, eject operation, calculation / storing processing of measured data, calculation processing / determination processing such as non-defective / defective product determination processing, abnormality determination processing, or the display device 5 Various processes such as output image display control process are executed. This microcomputer 1 actually has various I
It is configured with an I / O interface, a ROM, a RAM, a CPU, and the like, and executes various processes by various programs created in advance. In this embodiment, the molding condition setting storage unit 11 and the molding process control unit 12 are also included. , The measured value storage unit 13, the display processing unit 14, the key input processing unit 15,
The following description will be made assuming that the personal identification number registration storage unit 16 and the personal identification number determination unit 17 are provided. The display processing unit 1
4 includes a data conversion processing unit 18, a display fixed data storage unit 19, a display image data generation unit 20, and the like.

In the molding condition setting storage unit 11, various operating condition values input by the key input device 4 via the key input processing unit 16 are stored in a rewritable form. The operating condition values include, for example, tightening force, the relationship between the screw position and the screw rotation speed during the charging stroke, the screw retreat speed, and the back pressure, suck back control conditions, and injection starting point (position) and holding pressure switching. Injection speed conditions and injection pressure conditions up to a point (position), secondary injection pressure (holding pressure) conditions from the holding pressure switching time to the holding pressure end time, band heater temperature of each part, mold closing (mold clamping) stroke Examples include speed control conditions, mold clamping force, mold opening stroke and speed control conditions, eject control conditions, control conditions for an automatic product take-out machine, and the like.

The molding process control unit 12 is based on a molding process control program created in advance and setting condition values stored in the molding condition setting storage unit 11, and the sensor group 2 arranged in each unit of the machine. Through the driver group 3 (motor driver, hydraulic cylinder driver, heater driver, etc.) while referring to measurement information from (position sensor, pressure sensor, temperature sensor, etc.) and timing information from a clock built in itself. The corresponding drive source is drive-controlled to execute a series of molding steps.

All the actual measurement data of preset monitor items during continuous automatic operation are stored in the actual measurement value storage unit 13 over a predetermined number of continuous shots. The monitor items that are taken in include time monitoring items, position monitoring items, rotation speed monitoring items, speed monitoring items, pressure monitoring items, temperature monitoring items, power monitoring items, and other important items of the molding operation condition setting items described above. Are almost overlapping.

The display processing unit 14 displays the display image data in the designated display mode based on the display image creation / control program created in advance by the operator's command to call the display image in the desired mode from the key input device 4. To create. That is, when a predetermined display image calling command from the operator arrives, the data conversion processing unit 18 of the display processing unit 14 uses the information stored in the molding condition setting storage unit 11 and the measured value storage unit 13 as necessary. Data for use in displaying the display mode image is extracted, and is converted into a form corresponding to the specified display mode of the display mode image. For example, when the designated display mode is a graphic image of a certain process, the extracted data is converted into image data which has been subjected to line drawing processing at a predetermined enlargement / reduction ratio, and there is also a designated display mode. If it is the operation state setting image of the process, the extracted data is converted into numerical image data. And
The generation processing data of these data conversion processing units 18 are taken in by the display image data generation unit 20. On the other hand, a large number of fixed data, such as characters, symbols, graphic figures, ruled line data, etc. for mode images, which are created and stored in advance in the display fixed data storage unit 19, are used for displaying the display mode image. Data is extracted,
This is taken into the display image data generation unit 20, and is combined with the generation processing data of the data conversion processing unit 18 as image data for display. As a result, the image data for the designated display mode is created in the display image data generation unit 20 and is rewritably held.
Then, such image data of the display image data generation unit 20 is transferred to a frame buffer (not shown) and temporarily stored therein, and the output of this frame buffer is sent to the display device 5 according to a command from the display processing unit 14. The image data in the predetermined mode is displayed on the display screen of the display device 5.

The personal identification number registration storage section 16 stores a personal identification number having a predetermined number of digits set in advance in a rewritable form. Further, the personal identification number determination unit 17 causes the operator to perform the key input processing from the key input device 4 while the registered personal identification number stored in the personal identification number registration storage unit 16 and a personal identification number input mode image to be described later are displayed. It is determined whether or not the input personal identification number input via the unit 15 matches. Then, according to the judgment result of the personal identification number judging section 17, the microcomputer 1 enables the setting of the driving condition while displaying a desired driving condition setting mode image on the display screen of the display device 5. The setting operation permission mode and the setting operation non-permission mode that disables the setting of the operating condition while the desired operating condition setting mode image is displayed on the display screen are selectively selected. There is.
That is, when the input personal identification number and the registered personal identification number do not match, the microcomputer 1 takes the setting operation non-permission mode (when the previous state was the setting operation non-permission mode, this is maintained, If the state is the setting operation permission mode, it transits to the setting operation non-permission mode.) In this setting operation non-permission mode, you can call and display any setting condition display mode image to check the setting conditions. However, it is prohibited to interactively set the molding operation condition with the setting condition display mode image (prohibition of setting / updating from the password determining unit 17 to the molding condition setting storage unit 11). Command is to be output). on the other hand,
When the input personal identification number and the registered personal identification number match, the microcomputer 1 enters the setting operation permission mode (if the previous state was the setting operation non-permission mode, transitions to the setting operation permission mode). In the setting operation permission mode, it is possible to call an arbitrary setting condition display mode image and interactively set the molding operation condition with the setting condition display mode image (from the personal identification number determination unit 17 to the above-mentioned. A setting / updating permission command is output to the molding condition setting storage unit 11). Further, in the setting operation permission mode, the personal identification number registration storage unit 16 can be rewritten and updated by the control signal from the personal identification number determination unit 17.

In the above-mentioned structure, when the system (microcomputer 1) is in the setting operation disapproval mode,
When the operator calls the input mode image of the personal identification number by a predetermined key input operation of the key input device 4, the display device 5
A PIN code input mode image (a PIN code input mode image in the setting operation non-permission mode) as shown in FIG. 2 is displayed on the display screen. In the display image of FIG. 2, a symbol image 21 and a character 22 indicating that the current mode is the setting operation non-permission mode are displayed, and an input personal identification number display field 23 for prompting the operator to input a personal identification number. Is displayed, and the cursor 24 indicates the input personal identification number display field 2
It is located at 3. In this state, when the operator operates the numeric keys of the key input device 4 to input the personal identification number, this is taken into the data conversion processing unit 18 via the key input processing unit 15 and converted into numerical image data, It is sequentially displayed in the input personal identification number display field 23.

If the input personal identification number entered by the operator is different from the registered personal identification number stored in the personal identification number registration storage unit 16, this is discriminated by the personal identification number determination unit 17, and the microcomputer 1 detects, for example, a security code. A sound is emitted to let the operator know that the personal identification numbers do not match, and the setting operation non-permission mode is maintained. On the other hand, if the input personal identification number input by the operator is the same as the registered personal identification number stored in the personal identification number registration storage unit 16, this is recognized by the personal identification number determination unit 17,
Based on this, the control signal from the personal identification number determination unit 17 is transmitted to the molding condition setting storage unit 11 and display processing unit 1 in the microcomputer 1.
4, sent to the necessary parts such as the personal identification number registration storage unit 16,
The microcomputer 1 (system) transitions from the setting operation non-permission mode to the setting operation permission mode, and the display processing unit 14 changes the display image to the input mode image of the personal identification number in the setting operation permission mode as shown in FIG. Switch.

In the display image shown in FIG. 3, a symbol image 25 and a character 26 indicating that the current mode is the setting operation permission mode are displayed, and the operator is input in the input personal identification number display field 23. The input personal identification number and the registered personal identification number preset and displayed in the registered personal identification number display field 27 are displayed, and the input personal identification number and the registered personal identification number are written together. Therefore, FIG.
When the display image of is displayed, the operator can at a glance that the system is in the setting operation permission mode, and then the desired setting condition display mode image is called by a predetermined key operation. The input setting values are stored in a predetermined area of the molding condition setting storage unit 11 by sequentially inputting and confirming the setting values to each setting item interactively in the image display state.

After a series of molding operation condition setting operations are completed, when the operator calls up the code number input mode image by a predetermined key operation, the code number in the setting operation permission mode of FIG. 3 is displayed on the display screen. The input mode image of is displayed. In this state, the cursor 24 is positioned in the input personal identification number display field 23, and the numerical value in the input personal identification number display field 23 is changed to a value different from the registered personal identification number by operating the numerical keys. Changes from the setting operation permission mode to the setting operation non-permission mode, and the display processing unit 14 switches the display image to the PIN input mode image in the setting operation non-permission mode as shown in FIG. Therefore, after that, unless a person who is entrusted with setting the molding operation conditions, such as a management person who knows the registered personal identification number, shifts the microcomputer 1 (system) to the setting operation permission mode by the above-mentioned operation, It is designed so that a person cannot set the molding operation condition.

Further, in this embodiment, the registered personal identification number can be changed in the display state of the personal identification number input mode image in the setting operation permission mode of FIG. 3 described above. By moving the cursor 24 to the registered personal identification number display field 27 and changing the numerical value of the registered personal identification number display field 27 to another appropriate value, the registered personal identification number of the personal identification number registration storage unit 16 is rewritten and updated. It is supposed to be remembered. In addition, at the time of rewriting and updating the registered personal identification number, the numerical value of the input personal identification number display field 23 is rewritten to the same as the registered personal identification number display field 27 according to the numerical value rewritten in the registered personal identification number display field 27. It is like this. By thus enabling rewriting and updating of the registered personal identification number, confidentiality of the personal identification number is further enhanced.

[0020]

As described above, according to the present invention, the setting operation of the molding operation condition can be specified only by the selected person.
It is possible to provide an enabling / disabling control method of setting operation in an injection molding machine which does not require a key switch and is easy to manage, and its value is great.

[Brief description of drawings]

FIG. 1 is a simplified block diagram of a control system of an injection molding machine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of a personal identification number input mode image in a setting operation non-permission mode according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a personal identification number input mode image in a setting operation permission mode according to an embodiment of the present invention.

[Explanation of symbols]

 1 Microcomputer (microcomputer) 2 Sensor group 3 Driver group 4 Key input device 5 Display device 11 Molding condition setting storage unit 12 Molding process control unit 13 Actual measurement value storage unit 14 Display processing unit 15 Key input processing unit 16 PIN number registration storage unit 17 PIN identification section

Claims (4)

[Claims] 1. A setting operation permission mode, which is provided with a display device capable of displaying various mode images, and in which operating conditions can be set while a desired operating condition setting mode image is displayed on the display screen of the display device. The setting of operating conditions is prohibited in the injection molding machine having the setting operation disapproval mode that disables the setting of the operating conditions with the desired operating condition setting mode image displayed on the display screen. In the setting operation disapproval mode state, the personal identification number input mode image is called prior to the setting of the operating condition, and in the display state of the personal identification number input mode image, the number corresponding to the pre-registered personal identification number is input. Only in this case, the setting operation enabling / disabling control method in the injection molding machine is characterized in that the setting operation permission mode is set so that the operating conditions can be set. 2. The personal identification number entered by the operator is displayed in the personal identification number input mode image in the setting operation non-permission mode according to claim 1, and the personal identification number and the pre-registered personal identification number are registered in this state. When the personal identification number coincides, the input mode image of the personal identification number is switched to the input mode image of the personal identification number for setting operation in which the input personal identification number and the pre-registered personal identification number are displayed together. Control method for enabling / disabling setting operation in injection molding machine. 3. The display mode according to claim 2, wherein the setting mode permission password input mode image is displayed.
A control method for enabling / disabling a setting operation in an injection molding machine, wherein the registered security code can be changed by variably setting the numerical value in the display field of the registered security code. 4. The setting operation according to claim 2, wherein the setting operation is performed by inputting a numerical value different from the registered personal identification number into the input personal identification number display field in the display state of the input personal identification number input mode image. A method for enabling / disabling a setting operation in an injection molding machine, characterized in that a transition is made to a non-permission mode.