JP2735711B2 - Control method for enabling / disabling setting operation in injection molding machine - Google Patents

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. It relates to the impossible control method.

[0002]

2. Description of the Related Art A recent microcomputer-controlled injection molding machine is provided with a display device such as a color CRT display and a color LCD display. The display device sets or confirms molding operation conditions for automatic molding operation. Display mode image for displaying various setting conditions for performing automatic inspection, various actual measurement data display mode images for displaying actual measurement data of many measurement items during automatic molding operation, A periodic inspection mode image for prompting, an alarm mode image for recognizing this when an abnormality occurs, and the like are displayed.

[0003] In this type of injection molding machine,
Each time the mold is replaced, suitable molding operation condition values corresponding to individual product shapes, resin materials, and the like are sequentially input and set interactively with the display images while the various setting condition display mode images are being called. Had become. Since each set value of the molding operation condition is closely related to the quality of the molded product, the operation of setting the molding operation condition is generally entrusted to an operator with extensive knowledge and experience.

[0004]

As described above, the setting of the molding operation conditions is preferably performed by an operator with a wealth of knowledge and experience, and the inexperienced operator may perform the initial setting or after setting the suitable operation conditions. It is desired to prevent an unskilled operator from unnecessarily changing the molding operation conditions. For this reason, conventionally, a mode in which an administrator or the like keeps a dedicated key (key) switch for permitting the setting operation of the molding operation condition and allows the operation condition setting operation using this dedicated key switch. Although the setting operation of the molding operation condition is enabled only when the setting operation permission mode is set, the key switch may be lost and the management is troublesome. In addition, providing a dedicated key switch leads to an increase in cost.

[0005] The present invention has been made in view of the above points,
An object of the present invention is to provide a method for enabling / disabling a setting operation in an injection molding machine which can specify the setting operation of the molding operation condition only to a selected person and which does not require a key switch and which is easy to manage. It is in.

[0006]

In order to achieve the above object, the present invention comprises a display device capable of displaying various mode images, and displays a desired operation condition setting mode image on a display screen of the display device. The setting operation permission mode that enables the setting of the operating condition in the state where the operating condition is set, and the setting operation disable mode that disables the setting of the operating condition while the desired operating condition setting mode image is displayed on the display screen. In the method of controlling the setting operation in the injection molding machine, the setting mode is prohibited in which the setting of the operating condition is prohibited, and the input mode image of the personal identification number is called prior to the setting of the operating condition. Password input mode The setting operation permission mode that enables the setting operation of the operating conditions only when a number that matches the password registered in advance is input in the image display state. So as to transition to, also, the setting
In the fixed operation non-permission mode, the password input mode image
Displays the password entered by the operator.
In the state, the input password and the pre-registered password are
When they match, the input mode image of the password is
The security code and the pre-registered security code are displayed together.
Switch to the input mode image of the
In addition, the input mode of the password for permitting the setting operation
In the display state of the image, enter the registered security code in the display area of the input security code.
Entering a value different from the
A transition is made to the operation refusal mode.

[0007]

[Function] In the setting operation non-permission mode,
Even if the operating condition setting mode image is called, the system
Setting (or changing) operation of operating conditions is disabled. Then, in the setting operation non-permission mode state, the input mode image of the personal identification number is called up, and when the operator inputs the personal identification number that matches the previously registered personal identification number, the system sets the operating condition allowing the setting of the operation condition. Transition to mode. In the setting operation prohibited mode, the security code
The password entered by the operator
Is displayed, and in this state the entered security code and
If the password matches, the password input mode image
Indicates the password entered and the password registered in advance.
Mode image of password for setting operation permission displayed
Switch to. And the password of this setting operation permission
In the display mode of the input mode image, go to the input password display field
By entering a number different from the registered PIN,
The system transitions to the setting operation non-permission 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 the injection molding machine according to the present embodiment. In FIG. 1, reference numeral 1 denotes a microcomputer (microcomputer) that controls the operation and display of the entire machine (injection molding machine), 2 denotes a sensor group including a large number of sensors provided in each part of the machine,
Reference numeral 3 denotes a driver group composed of a large number of driver circuits for driving and controlling a large number of driving sources provided in various parts of the machine. 4 denotes a key input device provided in a front part of the machine.
Is a display device including, for example, 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, and eject operation, calculation / storage processing of measured data, determination processing of non-defective / defective products, calculation / determination processing such as abnormality determination processing, or processing of the display device 5 Various processes such as output image display control processing are executed. This microcomputer 1 actually has various I
In the present embodiment, a molding condition setting storage unit 11 and a molding process control unit 12 are used to execute various types of processing by using various programs created in advance. , An actual measured value storage unit 13, a display processing unit 14, a key input processing unit 15,
The following description is provided 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, a data conversion processing unit 18, a fixed data storage unit for display 19, a display image data generation unit 20, and the like are provided.

Various operating condition values input by the key input device 4 through the key input processing unit 16 are stored in the molding condition setting storage unit 11 in a rewritable form. The operating condition values include, for example, the tightening force, the relationship between the screw position and the screw rotation speed during the charge stroke, the screw retreat speed, and the back pressure, the suck back control condition, and the holding pressure switching from the injection start point (position). Injection speed conditions and injection pressure conditions up to the point (position), secondary injection pressure (holding pressure) conditions from the point of holding pressure switching to the end of holding pressure, band heater temperature of each part, mold closing (mold closing) stroke and 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 are given.

The molding process control unit 12 is based on a molding process control program created in advance and setting condition values stored in a molding condition setting storage unit 11, and the sensor group 2 provided in each unit of the machine is controlled. While referring to measurement information from (position sensors, pressure sensors, temperature sensors, etc.) and time measurement information from a clock incorporated therein, through the driver group 3 (motor drivers, hydraulic cylinder drivers, heater drivers, etc.) The drive of the corresponding drive source is controlled to execute a series of molding steps.

The actually measured value storage section 13 stores all actually measured data of preset monitor items during continuous automatic operation over a predetermined number of consecutive shots. The monitored items to be captured include a time monitoring item, a position monitoring item, a rotation speed monitoring item, a speed monitoring item, a pressure monitoring item, a temperature monitoring item, a power monitoring item, and the like. Are almost overlapped.

The display processing section 14 displays display image data of a designated display mode based on a display image creation / control program created in advance by a command to call a display image in a mode desired by the operator via the key input device 4. Create That is, when a command to call a predetermined display image arrives from the operator, the data conversion processing unit 18 of the display processing unit 14 reads the information stored in the molding condition setting storage unit 11 or the measured value storage unit 13 as necessary. Data to be used for displaying the display mode image is extracted, and the data is converted into a form corresponding to the specified display mode of the display mode image. For example, if the designated display mode is a graphic image of a certain process, the extracted data is converted into image data that has been subjected to line drawing at a predetermined enlargement / reduction ratio, or the designated display mode is a certain display mode. If the image is an operation state setting image of a process, the extracted data is converted into numerical image data. And
The generation processing data of the data conversion processing unit 18 is taken into the display image data generation unit 20. On the other hand, characters, symbols, graphic figures, ruled line data, etc., which are fixed data for a number of mode images, which are created and stored in the display fixed data storage unit 19 in advance, are used for displaying the display mode image. The data is extracted,
This is taken into the display image data generation unit 20, and is synthesized as display image data together with the generation processing data of the data conversion processing unit 18. As a result, the display image data generation unit 20 generates the image data for the specified display mode, and holds the rewritable image data.
Then, the image data of the display image data generation unit 20 is transferred to a frame buffer (not shown) and temporarily stored, and the output of the frame buffer is transmitted 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 unit 16 stores personal identification numbers of a predetermined number of digits set and registered in advance in a rewritable form. Further, the password determination section 17 allows the operator to perform the key input processing from the key input device 4 in the display state of the registered password stored in the password registration storage section 16 and a password input mode image described later. It is determined whether or not the input password input via the unit 15 matches. Then, according to the determination result of the personal identification number determination unit 17, the microcomputer 1 enables the setting of the operating condition while a desired operating condition setting mode image is displayed on the display screen of the display device 5. A setting operation permission mode and a setting operation non-permission mode that disables setting of operation conditions in a state where a desired operation condition setting mode image is displayed on the display screen are selectively selected. I have.
In other words, if the input password and the registered password do not match, the microcomputer 1 takes the setting operation non-permission mode (if the previous state was the setting operation non-permission mode, it maintains this mode, If the status is the setting operation permission mode, the mode transits to the setting operation non-permission mode.) In this setting operation non-permission mode, any setting condition display mode image can be called and displayed to check the setting conditions. However, it is prohibited to set and operate the molding operation conditions interactively with the setting condition display mode image (prohibition of setting / updating from the password identification unit 17 to the molding condition setting storage unit 11). Command is output). on the other hand,
If the input password matches the registered password, the microcomputer 1 takes a setting operation permission mode (transition to the setting operation permission mode if the previous state was the setting operation non-permission mode). In the setting operation permission mode, an arbitrary setting condition display mode image can be called to allow setting of the molding operation condition interactively with the setting condition display mode image (the password number determination unit 17 determines that A setting / update permission command is output to the molding condition setting storage unit 11). In the setting operation permission mode, the password registration / storage section 16 can be rewritten and updated in accordance with a control signal from the password identification section 17.

In the above configuration, when the system (microcomputer 1) is in the setting operation non-permission mode described above,
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 password input mode image (a password input mode image in the setting operation non-permission mode) as shown in FIG. 2 is displayed on the display screen of FIG. 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 password display field 23 for prompting the operator to input a password is provided. Is displayed, and the cursor 24 is moved to the input password display field 2
3 is located. In this state, when the operator operates the numerical keys of the key input device 4 to input a password, the password is taken into the data conversion processing unit 18 via the key input processing unit 15 and is converted into numerical image data. The passwords are sequentially displayed in the input password display field 23.

If the input password input by the operator is different from the registered password stored in the password registration storage unit 16, this is determined by the password determination unit 17, and the microcomputer 1 is controlled by, for example, A sound is issued to inform the operator that the passwords do not match, and the setting operation non-permission mode is maintained. On the other hand, if the input password entered by the operator matches the registered password stored in the password registration storage unit 16, this is recognized by the password determination unit 17,
The control signal from the personal identification number determination unit 17 based on this is transmitted to the molding condition setting storage unit 11 and the display processing unit 1 in the microcomputer 1.
4, sent to necessary parts such as the personal identification number registration storage unit 16,
The microcomputer 1 (system) shifts from the setting operation non-permission mode to the setting operation permission mode, and the display processing unit 14 converts the display image into a password input mode image 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 inputs an input password in the input password display field 23. The input personal identification number and the registered personal identification number set and registered in advance in the registered personal identification number display column 27 are displayed, and the input personal identification number and the registered personal identification number are written together. Therefore, FIG.
Is displayed, the operator can determine at a glance that the system has entered the setting operation permission mode. After that, the desired setting condition display mode image is called by a predetermined key operation, and this setting condition display mode is displayed. By sequentially inputting and setting the set values for each set item interactively in the image display state, the input set values are stored in a predetermined area of the molding condition setting storage unit 11.

After a series of forming operation condition setting operations are completed, when an operator calls a password input mode image by a predetermined key operation, the password in the setting operation permission mode shown in FIG. 3 is displayed on the display screen. Is displayed. In this state, if the cursor 24 is positioned in the input password display field 23 and the numerical value in the input password display field 23 is changed to a value different from the registered password by operating the numerical keys, the microcomputer 1 (system) 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 password mode input mode image in the setting operation non-permission mode as shown in FIG. Therefore, after that, a person who is entrusted with setting the molding operation conditions, such as a manager who knows the registered personal identification number, does not shift the microcomputer 1 (system) to the setting operation permission mode by the above-described operation. The user is in a state where setting of molding operation conditions is impossible.

In this embodiment, the registered password can be changed in the display mode of the input mode image of the password in the setting operation permission mode shown in FIG. By moving the cursor 24 to the registered password display field 27 and changing the value in the registered password display field 27 to another value as appropriate, the registered password in the password registration storage unit 16 is rewritten and updated. It is to be remembered. At the time of rewriting and updating the registered password, the numerical value of the input password display field 23 is also rewritten and displayed in the same manner as the registered password display field 27 in accordance with the numerical value rewritten in the registered password display field 27. It has become. By enabling the rewriting and updating of the registered personal identification number, the security of the personal identification number is further enhanced.

[0020]

As described above, according to the present invention, the setting operation of the molding operation conditions can be specified only by a selected person, and
Enable / disable control method for setting operation in manageability injection molding machine according to the key switch unnecessary Ru can provide. Also set
In the operation prohibited mode, the password input mode
The password entered by the operator is displayed.
The input password matches the pre-registered password
And the password input mode image is
Setting operation permission that is displayed together with the registered password
The display switches to the input mode image for the password
It is possible to rewrite and update the PIN, and the confidentiality of the PIN
In addition to higher retention, a password setting operation permission mode
The operation for switching to is also simple. In addition,
Enter password for work permission
Enter a value different from the registered password in the display field of the password
The system to the setting operation prohibited mode.
Because it transitions, to transition to the setting operation prohibited mode
Operation is extremely simple. Overall, management is
Easy-to-use, easy-to-use injection molding machine
Can provide a method of enabling / disabling setting operations in
The value is enormous.

[Brief description of the drawings]

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

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

[Explanation of symbols]

 Reference Signs List 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 measured value storage unit 14 display processing unit 15 key input processing unit 16 password registration storage unit 17 password identification section

Claims (1)

(57) [Claims] 1. A setting operation permission mode, comprising a display device capable of displaying various mode images, and enabling setting of operation conditions while a desired operation condition setting mode image is displayed on a display screen of the display device. The setting of the operating condition is prohibited in an injection molding machine having a setting operation disallowed mode that disables setting of the operating condition while a desired operating condition setting mode image is displayed on the display screen. In the setting operation non-permission mode state, the input mode image of the personal identification number is called prior to the setting of the driving condition, and in the display state of the personal identification number input mode, a number corresponding to the personal identification number registered in advance is input. only when so as to transition to the setting operation permission mode that allows setting operation of the operating conditions, and in the setting operation prohibition mode entry of the PIN
The password entered by the operator is displayed in the force mode image.
In this state, the input password and the pre-registered
If the password matches, the password entry mode screen
For the image, the input PIN and the pre-registered PIN are written together
Screen for entering the password for setting operation permission
Image, and furthermore, the input mode image of the password for permitting the setting operation.
In the display state of, the registered password is displayed in the input password display field.
Enter a different value to
A method for enabling / disabling a setting operation in an injection molding machine , wherein a transition is made to a permission mode .