JP2007055016A - Molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately operate and control a machine (molding machine) by permitting only an operator (worker) having power to perform setting operation or the release operation of an alarm. <P>SOLUTION: The molding machine is equipped with an input device and a display device and constituted so as to perform various operations using those devices. This molding machine is equipped with a password memory means for storing a password so as to be capable of rewriting the same, a password certification means for comparing an inputted password with the password stored in the password memory means to certify an individual and an input operation restricting means which permits the operator accurately certified by the password certification means to perform the setting operation of the molding machine, prohibits the setting operation of the molding machine by an operator not accurately certified, permits the accurately certified operator to release the alarm produced in the molding machine and prohibits the release of the alarm by the operator not accurately certified. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a molding machine such as an injection molding machine or a die-casting machine, and more particularly to a technique that allows only an authorized operator (operator) to perform a setting operation of the molding machine (machine).

  In a molding machine such as an injection molding machine, various operations can be performed using an input device and a display device provided in the machine (molding machine). This operation can be performed by anyone without any restrictions.

  As described above, since the conventional machine can be operated by anyone, an inexperienced or inexperienced operator can set the machine operating conditions and the like (the settings in this application are the initial settings and conditions). Inadvertently performing operations (including changing settings) and releasing alarms have caused problems such as inappropriate machine operating conditions and troubles. Also, no consideration has been given to countermeasures against malicious third parties performing settings such as machine operating conditions. In addition, when a machine operation condition setting operation is performed, it is not possible to specify later who performed what, and similarly, when an alarm release operation is performed, It was difficult to identify who released the alarm, and it was difficult to pursue responsibility when trouble occurred.

  The present invention has been made in view of the above points, and an object of the present invention is to allow a setting operation and an alarm canceling operation only to an authorized operator (operator), so that a machine (molding machine) ) Is to ensure correct operation management.

In order to achieve the above object, the present invention comprises an input device and a display device, and a molding machine capable of various operations using the input device and the display device.
A password storage means for storing the password in a rewritable manner;
Password authentication means for performing personal authentication by comparing the input password and the password stored in the password storage means;
The operator who is correctly personally authenticated by this password authentication means is permitted to perform the setting operation of the molding machine, and the operator who is not correctly personally authenticated is prohibited from the setting operation of the molding machine and has been correctly personally authenticated. An input operation restriction means for allowing an operator to cancel an alarm generated in the molding machine and prohibiting an operator who has not been correctly personally authenticated from releasing the alarm,
Take the configuration provided.
Also, when a setting operation of the molding machine is performed, the password of the operator who performed the setting operation and the content of the setting operation are stored in association with each other, and when the alarm is canceled, the cancellation is performed. There is provided a history storage means for storing the password of the operator who has performed the operation and the contents of the alarm that has been cancelled.
In addition, an operation image for causing the input operation restriction unit to shift from the operation restriction release state to the operation restriction state is provided.
Further, when a predetermined time elapses after the input of the correctly authenticated personal password, the input operation restriction means is configured to shift from the operation restriction release state to the operation restriction state.

According to the present invention, the personal authentication is performed by comparing the input password and the password stored in advance, and the setting operation of the molding machine is permitted for an operator who is correctly personally authenticated, and the personal authentication is not correctly performed. The operator who set up the molding machine is prohibited, and the operator who is correctly personally authenticated is allowed to cancel the alarm generated in the molding machine. Since the release of the alarm is prohibited, only the authorized operator (worker) performs the setting operation and the alarm release operation, so that the machine (molding machine) can be correctly operated and managed. Moreover, even an unprivileged operator (who does not have a password) can call up various monitoring screens to check the machine operating status, etc. Even an operator who is not authorized can perform the operation without any trouble.
In addition, when a setting operation is performed or an alarm canceling operation is performed, the password of the operator who performed the operation is stored in association with the content of the setting operation or the content of the alarm that has been cancelled. Therefore, it is possible to easily specify who performed what kind of operation later.
Further, by providing an operation image for causing the input operation restriction means to shift from the operation restriction release state to the operation restriction state, when the operator who is correctly personally authenticated leaves the molding machine, the operation restriction state is entered on this operation screen. Therefore, it is possible to reliably prevent an unprivileged operator from performing a setting operation or an alarm canceling operation.
In addition, when a predetermined time elapses after the correct personally-authenticated password is entered, the input operation restriction means shifts from the operation restriction release state to the operation restriction state. It is possible to reliably prevent the setting operation and the alarm release operation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 relate to an injection molding machine (hereinafter referred to as a machine) according to an embodiment of the present invention (hereinafter referred to as the present embodiment), and FIG. 1 is an outline of a control system of the machine according to the present embodiment. FIG.

  In FIG. 1, 1 is a system controller that controls the entire machine, 2 is an input device including a keyboard device connected to the system controller 1, and 3 is a liquid crystal display device connected to the system controller 1. In the display device, the display device 3 includes an input unit 3a including a touch panel. The input device of the machine according to the present embodiment includes the input device 2 and the input unit 3a.

  The system controller 1 is actually composed of a personal computer equipped with a CPU, ROM, RAM, HDD, various interfaces, etc., and executes various processes by developing various programs prepared in advance in a work area. The operation control function, the arithmetic processing function, the determination function, the storage / reading processing function, the display processing function, and the like, which will be described later, are embodied by various programs.

  In the system controller 1, 101 is a main control unit that collectively manages each component in the system controller 1, 102 is a password storage unit that stores a plurality of passwords in a rewritable manner, and 103 is a password storage unit 102. The stored password is compared with the password entered by the operator (or an administrator who will be described later), and the password stored in the password storage unit 102 is given (authorized) or the operator (or the later described). A password authentication unit that performs personal authentication and 104 receives an input operation from the input device 2 or the input unit 3a and interprets the input, and 105 indicates an operator. The input operation restriction unit 106 that restricts or cancels the input operation by means of an appropriate image A display processing unit 107 that performs processing and generates an output image to the display device 107, a fixed data storage unit for display that stores necessary text, graphics, ruled lines, and the like in the image to be displayed; An operation condition setting storage unit 109 that stores the operation conditions of each molding process in a rewritable manner, 109 is a group of sensors (not shown) of each part of the machine, based on various operation control programs and data stored in the operation condition setting storage unit 108. An operation process control unit 110 that performs drive control of actuators (not shown) of each part of the machine via a driver group (not shown) and executes a series of molding operations with reference to detection information and timing information from 110, molding operation Measurement value storage unit 111, in which measured values of various operating conditions are taken in over a predetermined number of shots, monitors the state of peripheral machines such as injection molding machines and product take-out machines, The state determination unit 112 that selects whether or not the alarm message is displayed by the display device 3 and the message type when the alarm message is displayed. The state determination unit 112 uses the data stored in the measurement value storage unit 110 as the good / bad determination table. The monitoring (monitoring) arithmetic processing unit 113 that performs a statistical calculation process on the data of a large number of shots stored in the measurement value storage unit 110 and holds the processing results, The various history storage units 114 that store various history data such as alarm history and setting operation history are message storage units that store a large number of alarm message data.

  The machine according to the present embodiment has a setting operation and an alarm in order to limit the operators who can perform various data setting operations (initial setting and setting change) stored in the operation condition setting storage unit 108 and an alarm canceling operation. Each operator is given a unique password for an operation permitted to perform the release operation (that is, authorized). FIG. 2 shows an example of a password input image called on the display device 3 by an appropriate operation.

  As shown in FIG. 2, the password input image is provided with one password input field 21, and an operator who is authorized in the password input field 21 does not input the password correctly in order to personally authenticate himself / herself. As long as the password authentication unit 103 of the system controller 1 is not regarded as an authorized operator, the input operation restriction unit 105 of the system controller 1 does not permit the setting operation and the alarm release operation to the operator. FIG. 2 shows a state in which the password is not entered or entered correctly in the password input field 21. At this time, the password input image indicates that “setting is not possible” and “alarm release is impossible”. is doing.

  In the state shown in FIG. 2, when an authorized operator correctly enters a password to personally authenticate himself / herself in the password input field 21, the password authenticating unit 103 regards it as an authorized operator, and the input operation restricting unit 105. Permits the operator to perform a setting operation and an alarm release operation, and the display of the password input image changes as shown in FIG. In FIG. 3, it is displayed that “setting is possible” and “alarm release is possible”. It should be noted that the display in the password input field 21 is limited to the display of the number of digits so that it is not possible to specify what symbol or numerical value has been input, for example, as indicated by an asterisk (*), and it will be blank after a predetermined time Has been.

  Also, as shown in FIG. 3, when the operator who is correctly personally authenticated leaves the machine when the input operation restriction unit 105 is in the operation restriction release state, for example, one “0” is entered in the password entry field 21. As a result, the input operation restriction unit 105 can be shifted from the operation restriction release state to the operation restriction state, so that even if the authorized operator leaves the machine, the authority is given. It is possible to reliably prevent an unoperated operator from performing a setting operation or an alarm canceling operation. Note that the instruction to shift the input operation restriction unit 105 from the operation restriction release state to the operation restriction state is not limited to the password input image, and an icon button for instructing that is provided in other appropriate plural images. Can also be realized.

  In addition, the password input field 21 of the password input image of FIGS. 2 and 3 can also input a password for the administrator, and the administrator who has been given the management right in the password input field 21 of the password input image. When the password is correctly entered to authenticate himself, the password authenticating unit 103 regards it as a correct administrator having the management right, so that the image on the display device 3 is as shown in FIG. 4 from the password input image. Transition to password setting image.

  As shown in FIG. 4, the password setting image includes a password setting field 41 for one administrator, a password setting field 42 for a plurality of operators (here, for the operators “1” to “6”), The operator password can be set only by an administrator who is a higher-level manager on the user side (side using the machine). The administrator password is stored in advance in the password storage unit 102 by the machine sales side, and is made known only to the administrator. When the administrator correctly inputs the administrator password in the password input field 21 of the password input image of FIGS. 2 and 3, the password can be input in the operator password setting field 42 using the password setting image. In the password setting field 42, a password is set for each operator to be given authority by inputting the password in one-to-one correspondence with the operator to whom authority is given. The set operator password is stored in the password storage unit 102. In addition, by using such a password setting image, it is also possible to change the password, thereby changing the password for the operator “1” so as to correspond to the person B from the person A. It is also possible to change the password, for example, to another person A who has forgotten the password for the operator “1” and give it again. Here, in the password setting image of FIG. 4, the set operator password or the set administrator password may be displayed so as to be visible. In this way, the administrator Can confirm the password that has been set by calling the password setting image. However, from a security point of view, it is desirable to have a mechanism that does not display a set password, and the set password is not displayed on the machine of this embodiment.

  In this embodiment, the administrator password cannot be set on the user side. Therefore, if the administrator forgets the password for the administrator, a service person on the sales side of the machine goes to the installation location of the machine and inputs the password for the password input image shown in FIGS. The password setting image is called by inputting a hidden password known only to the service person in the column 21 and input setting is performed in the password setting column 41 for the administrator of the password setting image only when the hidden password is input. This is possible. The password for the administrator reset or changed by the service person in this way is updated and recorded in the password storage unit 102.

  Next, processing operations related to the input of an operator password in the machine according to the present embodiment will be described with reference to the flowchart of FIG. When the input operation restriction unit 105 is in an operation restriction state (a state in which the setting operation and the alarm release operation are not permitted) (step S1), the authorized operator uses the password input image to enter the password input field 21 itself. Whether the password is correctly entered for personal authentication is monitored (step S2), and the password authentication unit 103 determines whether the operator password stored in the password storage unit 102 and the operator password entered by the operator are present. If it is determined that they match (YES in step S2), the input operation restriction unit 105 enters an operation restriction release state (a state in which setting operation and alarm release operation are permitted) (step S3). When the input operation restriction unit 105 is in the operation restriction release state, it is monitored whether or not an instruction to shift the input operation restriction unit 105 from the operation restriction release state to the operation restriction state has been issued (step S4). If this instruction has been made (YES in step S4), the process returns to step S1, and if no instruction has been given (NO in step S4), the process proceeds to step S5.

  In step S5, it is determined whether or not the operation condition setting operation has been performed by the operator. If the setting operation has been performed (YES in step S5), the process proceeds to step S6, and the setting operation has not been performed. In the case (when NO is determined in step S5), the process proceeds to step S7. In step S6, the contents of the setting operation performed by the operator, the date and time thereof, and the password for the operator determined in step S2 are associated with each other and stored in various history storage units 113, and the process proceeds to step S7. . In step S7, it is determined whether or not the state determination unit 111 that monitors the state of the machine or the peripheral device has detected the occurrence of an alarm event. If the alarm event has occurred (YES in step S7). The process proceeds to step S8, and if not (NO in step S7), the process returns to step S3. In step S8, alarm message data corresponding to the content of the alarm detected by the state determination unit 111 is transferred from the message storage unit 114 to the display processing unit 106, whereby the display processing unit 106 displays the alarm message window. An image is generated, and this is automatically interrupted and displayed on the display screen of the display device 3, and the process proceeds to step S9. In step S9, it is determined whether or not an alarm release operation has been performed by the operator. If the alarm release operation has been performed (YES in step S9), the process proceeds to step S10, where the alarm release operation is performed. If not (NO in step S9), the process returns to step S3. In step S10, the contents of the alarm released by the operator, the date / time thereof, and the password for the operator determined in step S2 are associated with each other and stored in various history storage units 113, and the process returns to step S3. .

  In the processing flow of FIG. 5, in step S4, it is determined whether or not an instruction to shift the input operation restriction unit 105 from the operation restriction release state to the operation restriction state is given by the operator. The process of step S4 is determined to determine whether or not a predetermined time has elapsed after the input of a correctly personally authenticated password. When the predetermined time elapses, the process returns to step S1, and within the predetermined time, the process proceeds to step S5. Alternatives are possible.

  As described above, in this embodiment, personal authentication is performed by comparing the input password (password for operator) with a previously stored password (password for operator), and an operator who has been correctly personally authenticated is authenticated. Allows the setting operation of the molding machine, prohibits the setting operation of the molding machine for an operator who is not correctly personally authenticated, and cancels the alarm generated in the molding machine for an operator who is correctly personally authenticated. Since it is prohibited to cancel the alarm for an operator who has not been properly personally authenticated, only the authorized operator (operator) can perform the setting operation and the alarm canceling operation. The machine (molding machine) can be managed correctly. In addition, even an unprivileged operator (who does not have a password) can call up various monitoring screens to check the machine operating status, etc. Even an operator who is not authorized can perform the operation without any trouble. In addition, when a setting operation is performed or an alarm canceling operation is performed, the password of the operator who performed the operation is stored in association with the content of the setting operation or the content of the alarm that has been cancelled. Therefore, it is possible to easily specify who performed what kind of operation later. Further, by providing an operation image for causing the input operation restriction means to shift from the operation restriction release state to the operation restriction state, when the operator who is correctly personally authenticated leaves the molding machine, the operation restriction state is entered on this operation screen. Therefore, it is possible to reliably prevent an unprivileged operator from performing a setting operation or an alarm canceling operation. In addition, in this case, the input operation restriction unit can automatically shift from the operation restriction release state to the operation restriction state when a predetermined time has elapsed after the correct personally authenticated password is entered. When the predetermined time has elapsed, it is possible to reliably prevent an unauthorized operator from performing a setting operation or an alarm canceling operation.

It is a block diagram which shows the outline of the control system of the injection molding machine (machine) which concerns on one Embodiment of this invention. It is explanatory drawing which shows the example of the password input image displayed on the display apparatus in the injection molding machine which concerns on one Embodiment of this invention. It is explanatory drawing which shows the example of the password input image displayed on the display apparatus in the injection molding machine which concerns on one Embodiment of this invention. It is explanatory drawing which shows the example of the password setting image displayed on the display apparatus in the injection molding machine which concerns on one Embodiment of this invention. It is a flowchart which shows the flow of the processing operation relevant to the input of the password for operators in the injection molding machine which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 System controller 2 Input device 3 Display device 3a Display device input unit 101 Main control unit 102 Password storage unit 103 Password authentication unit 104 Input reception unit 105 Input operation restriction unit 106 Display processing unit 107 Display fixed data storage unit 108 Operating conditions Setting storage unit 109 Operation process control unit 110 Measurement value storage unit 111 State determination unit 112 Monitor (monitoring) calculation processing unit 113 Various history storage units 114 Message storage unit 21 Password input field 41 Password setting field for administrator 42 Operator Password setting field

Claims (4)

In a molding machine comprising an input device and a display device, and capable of various operations using the input device and the display device,
A password storage means for storing the password in a rewritable manner;
Password authentication means for performing personal authentication by comparing the input password and the password stored in the password storage means;
The operator who is correctly personally authenticated by this password authentication means is permitted to perform the setting operation of the molding machine, and the operator who is not correctly personally authenticated is prohibited from the setting operation of the molding machine and has been correctly personally authenticated. An input operation restriction means for allowing an operator to cancel an alarm generated in the molding machine and prohibiting an operator who has not been correctly personally authenticated from releasing the alarm,
A molding machine characterized by comprising. The molding machine according to claim 1,
When a setting operation of the molding machine is performed, the password of the operator who performed the setting operation and the content of the setting operation are stored in association with each other, and when the alarm is canceled, the cancellation operation is performed. A molding machine comprising history storage means for storing a password of an operator who has been performed and the contents of an alarm that has been canceled, in association with each other. The molding machine according to claim 1 or 2,
A molding machine provided with an operation image for causing the input operation restriction means to shift from an operation restriction release state to an operation restriction state. The molding machine according to claim 1 or 2,
The molding machine according to claim 1, wherein when a predetermined time elapses after the input of a correctly authenticated personal password, the input operation restriction means shifts from the operation restriction release state to the operation restriction state.

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