JP5616255B2 - Molding machine - Google Patents

Description

  The present invention relates to a molding machine having a function of preventing erroneous setting by an operator through access restriction on the operating condition setting of the molding machine.

  Conventionally, a molding machine having a user management function is known (for example, see Patent Document 1). When the user logs on, the molding machine determines a group to which the user belongs and displays an operation screen that matches the determined group. As a result, the molding machine prohibits the display of setting items related to operations for which the operation authority is not given to the determined group, and prevents the user from performing operations for which the operation authority is not given. The group to which the user belongs is determined based on the job type of the user such as the administrator or the worker, and the user who belongs to each group is given the operation authority only for the operation related to the job type.

JP 2006-289778 A

  However, since the user management function of Patent Document 1 performs user authentication by inputting a user name and a password and associating an authenticated user with a specific group, the correspondence between the user name and the password, the user and the group, Must be stored on the molding machine side, and the configuration is complicated.

  In view of the above-described points, an object of the present invention is to provide a molding machine having a function of easily preventing erroneous setting by an operator through gradual release of access restriction for the operation condition setting of the molding machine.

In order to achieve the above object, a molding machine according to an embodiment of the present invention includes a display device that displays a setting screen including setting items that are prohibited from being accessed by an operator, and cancels the prohibition of access to the setting items. A release key receiving device that accepts a release key to perform, wherein the release degree by the release key is set in a stepwise manner, and the prohibition of access is released by a release key having a high release degree The release contents include all of the release contents of setting items whose access prohibition is released by a release key with a low release degree, and the release key is composed of a code that is exchanged electronically, and a release key with a high release degree The code is configured by adding a predetermined key code to the code of the release key having a low release degree.

  With the above-described means, the present invention can provide a molding machine having a function of easily preventing erroneous setting by an operator through gradual release of access restriction with respect to setting of operating conditions of the molding machine.

It is a functional block diagram which shows the structural example of the missetting prevention system mounted in the molding machine which concerns on the Example of this invention. It is a conceptual diagram which shows the relationship between a cancellation | release key and the setting item number from which access prohibition is cancelled | released with the cancellation | release key. It is a figure (the 1) which shows a heater temperature setting screen. It is a figure which shows a heater temperature setting screen (the 2). It is a figure (the 3) which shows a heater temperature setting screen. It is FIG. (4) which shows a heater temperature setting screen. It is FIG. (5) which shows a heater temperature setting screen. It is FIG. (6) which shows a heater temperature setting screen. It is a figure which shows the structural example of a cancellation | release key and a cancellation | release key reception apparatus.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a functional block diagram showing a configuration example of an erroneous setting prevention system SYS mounted on a molding machine according to an embodiment of the present invention.

  The erroneous setting prevention system SYS is a system for preventing an erroneous setting on the operating condition setting screen for setting the operating condition of the molding machine, and mainly includes the control device 1, the release key receiving device 2, and the display device 3. Consists of

  The control device 1 is a computer including a CPU, RAM, ROM, NVRAM, and the like. For example, programs corresponding to the release key identification unit 10 and the access control unit 11 are read from a storage medium such as a ROM and expanded in the RAM. However, the CPU is caused to execute processing corresponding to each unit.

  The release key receiving device 2 is a device for receiving a release key, and is a device that receives an operator input such as a keyboard, a touch panel, a barcode reader, or the like.

  “Release key” means a key for canceling the prohibition of access of a setting item whose access is prohibited on the operation condition setting screen, and is composed of, for example, an electronically exchanged code . The release key may be a plug-in key as a physical tool. In this case, the release key receiving device 2 includes, for example, a key cylinder.

  Further, “prohibition of access” means that an operator cannot access a specific setting item on the operation condition setting screen. Specifically, “Prohibit Access” indicates prohibited contents such as making a setting item invisible, prohibiting input to a setting item that has been visualized, and restricting the settable width of the setting item. Including. It should be noted that there is a difference in the degree of “prohibition of access”, for example, in the order of restriction of the settable width of the setting item, prohibition of input to the setting item in the visualized state, and invisibility of the setting item. Assume that the degree of access prohibition increases. Further, it is assumed that the degree of access prohibition increases as the number of setting items whose access is prohibited increases.

  In addition, setting items (hereinafter referred to as “cancellation target setting items”) whose access prohibition is canceled by each cancellation key and the cancellation contents can be added, deleted, changed, and the like. “Release contents” means the prohibited contents to be released. For example, canceling the invisibility of the setting item, releasing the prohibition of input to the setting item in the visualized state, Including the restriction of the settable width.

  The display device 3 is a device for displaying various information. For example, the display device 3 is a liquid crystal display attached to the main body of the molding machine, and displays various screens related to the molding machine including an operation condition setting screen.

  The release key identifying unit 10 is a functional element for identifying the release key received through the release key receiving device 2. For example, whether the release key (character string) input through the touch panel is a predetermined valid key code. Determine whether.

  Specifically, the release key identifying unit 10 displays a release key input screen (not shown) on the display device 3 when the key input switch is turned on, and prompts the operator to input the release key. Like that.

  Thereafter, if the release key identifying unit 10 determines that the input release key is not a predetermined valid key code, the release key identifying unit 10 displays a message to that effect on the display device 3 and rejects the key release.

  On the other hand, when the release key identifying unit 10 determines that the input release key is a predetermined valid key code, the release key identifying unit 10 outputs the release key to the access control unit 11.

  The release key identification unit 10 converts information (character string) input by the operator into a release key (character string) as a determination target using a conversion table stored in the ROM or NVRAM. Also good. This is to simplify the input of a long release key. In this case, instead of the original release key (a relatively long character string or a character string that is difficult to remember), the operator has his / her employee code or telephone number (a relatively short character string or a character string that is relatively easy to remember). ) May be input to the release key receiving apparatus 2.

  The release key is configured by adding another partial key code after a lower release key (partial key code) that can exist independently. Note that “a release key that can exist independently” means that it can be used as an independent release key.

  In addition, the upper and lower levels of the release key are determined by the level of release. “Release degree” means the opposite of the access prohibition degree, and the higher the access prohibition degree, the lower the release degree. In this way, the higher and lower ranks of the release key are considered higher as the release degree is higher, for example, the number of release target setting items is large. It should be noted that the setting items whose access prohibition is canceled by the upper release key and the release contents thereof include all the setting items whose access prohibition is canceled by the lower release key and the release contents thereof. Here, “the release content by the higher release key includes the release content by the lower release key” means, for example, “to release the restriction on the settable width of the setting item” "To release" and "to cancel the prohibition of input to the setting item in the visualized state".

  The access control unit 11 is a functional element for controlling whether or not to cancel the access prohibition of the setting item for which access is prohibited on the operation condition setting screen.

  For example, when it is determined that the release key identified by the release key identification unit 10 is a predetermined valid key code, the access control unit 11 cancels the prohibition of access to the setting item associated with the valid key code. .

  Specifically, the access control unit 11 visualizes a setting item that is in an invisible state, or sets a setting item that is in a visible state but does not accept input to a state that accepts input. .

  FIG. 2 is a conceptual diagram showing the relationship between the release key and the number of setting items whose access is canceled by the release key.

  FIG. 2 shows four regions A to D represented by four concentric circles, where region D includes regions A to C, region C includes regions A and B, and region B includes region A. .

  The size of each of the areas A to D represents the size of the number of release target setting items. That is, the larger the area, the greater the number of setting items to be canceled. In addition, the number of setting items to be canceled in each of the four areas A to D is the largest in the area D and the smallest in the area A. Note that the release target setting items belonging to the area A also belong to the areas B to D.

  Further, the “number of release target setting items” may be read as “release degree”. In this case, the larger the area, the higher the degree of release. Further, the degree of release in each of the four areas A to D is maximum in the area D and is minimum in the area A. The release contents belonging to the area A also belong to each of the areas B to D.

  When it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAA”, the access control unit 11 cancels the prohibition of access to the release target setting item belonging to the area A. Hereinafter, this process is referred to as “first level” cancellation. “AAA” means that any one or more characters, numbers, symbols, or the like are arranged in a predetermined order. The same applies to the following “BBB”, “CCC”, and “DDD”.

  In addition, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAABBB”, the access control unit 11 (including all the release target setting items belonging to the region A) The prohibition of access to the setting items to be released belonging to is released. Hereinafter, this processing is referred to as “second level” cancellation.

  In this case, the release key “AAABBBB” is configured by connecting two partial key codes “AAA” and “BBB” in the order of “AAABBBB”. The partial key code “AAA” constitutes an independent release key (release key for realizing the first level release) lower than the release key “AAABBB”. Further, the partial key code “BBB” means a key code for canceling the prohibition of access to the cancel target setting item belonging to the region B-A (the region excluding the region A from the region B). The partial key code “BBB” does not constitute an independent release key.

  Further, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAABBBCCCC”, the access control unit 11 includes the region C (including all the release target setting items belonging to the region B). The prohibition of access to the setting items to be released belonging to is released. Hereinafter, this process is referred to as “third level” cancellation.

  In this case, the release key “AAABBBCCC” is configured by concatenating three partial key codes “AAA”, “BBB”, and “CCC” in the order of “AAABBBCCC”. The partial key code “AAABBB” constitutes an independent release key (release key for realizing the second level release) lower than the release key “AAABBBCCCC”. Further, the partial key code “CCC” means a key code for canceling the prohibition of access to the setting item to be canceled belonging to the region CB (the region excluding the region B from the region C). The partial key code “CCC” does not constitute an independent release key.

  Similarly, when it is determined that the release key identified by the release key identifying unit 10 is the valid key code “AAABBBCCCDDD”, the access control unit 11 (including all the release target setting items belonging to the region C) The prohibition of access to the release target setting item belonging to D is released. Hereinafter, this process is referred to as “fourth level” cancellation.

  In this case, the release key is configured by concatenating the four partial key codes “AAA”, “BBB”, “CCC”, and “DDD” in the order of “AAABBBCCCDDD”. The partial key code “AAABBBBCCC” constitutes an independent release key (release key for realizing the third level release) lower than the release key “AAABBBCCCDDD”. Further, the partial key code “DDD” means a key code for canceling the prohibition of access to the cancellation target setting item belonging to the area DC (area excluding the area C from the area D). The partial key code “DDD” does not constitute an independent release key.

  When any one of a plurality of release keys having a stepwise hierarchical structure as described above is identified by the release key identifying unit 10, the access control unit 11 prohibits access to a setting item corresponding to each release key, for example. Is released.

  Note that the access control unit 11 may output a predetermined control signal to the display device 3 when the prohibition of access is cancelled, and display which level is cancelled.

  In addition, when the release key is input character by character on the release key input screen, the access control unit 11 cancels the level corresponding to the partial key code each time the input of the partial key code is completed. This may be displayed on the display device 3 or output as audio. It should be noted that the characters entered on the release key input screen may be represented by “*” or hidden so that they are not seen by others.

  In addition, when the access control unit 11 receives an input of a release key by converting an arbitrary character string into a character string as a determination target, each of the plurality of partial key codes constituting the release key You may be made to display or sound-output that the cancellation | release of corresponding multiple levels was performed simultaneously.

  Here, a process in which the erroneous setting prevention system SYS changes the contents of the operation condition setting screen according to the input release key will be described with reference to FIGS.

  3 to 8 are diagrams illustrating a heater temperature setting screen which is an example of the operation condition setting screen. FIG. 3 illustrates a state where all the prohibitions on access to the setting items are released (all released state). Reference numeral 4 denotes an initial state in which access to a predetermined setting item is prohibited.

  5 to 8 each show a state where the prohibition of access to the setting item is partially released (partially released state). It is assumed that the degree of release increases as the process proceeds from FIG. 5 to FIG.

  As shown in FIG. 3, the heater temperature setting screen is a screen for setting the target temperature of the cylinder heater attached to the injection cylinder of the molding machine. The setting items include main setting A1, purge setting A2, and heat retention setting. A3, monitoring range A4, and cold start prevention time A5 are included.

  The cylinder heater can be attached to a plurality of locations of the injection cylinder. For example, it is attached to each of the seven zones Z0, Z1, Z2, Z3, Z4, Z5b, and Z5a arranged from the rear end to the front end of the injection cylinder. It is possible. Zones Z5a and Z5b are heaters attached to the front and rear of the injection cylinder head at the front end of the injection cylinder. In this embodiment, since the cylinder heater in the zone Z3 is not used, the related setting items cannot be set. The shaded portion indicates that the related setting item cannot be set.

  “Water cooling temperature” is the temperature of a water cooling cylinder installed at a connection portion between an injection cylinder and a resin supply device (for example, a hopper). For example, the flow rate of cooling water flowing in a cooling pipe is adjusted. The temperature can be controlled by In this embodiment, since the flow rate of the cooling water is not adjusted, related setting items cannot be set. The shaded portion indicates that the related setting item cannot be set.

  The main setting A1 is a setting item for determining each target value of the heater to be controlled during molding.

  The purge setting A2 is a setting item for determining each target value of the cylinder heater during the purge process, which is a process for washing out the resin remaining in the injection cylinder.

  The heat retention setting A3 is a setting item for determining each target value of the heater to be controlled that is used to maintain the temperature of the mold and the injection cylinder at a certain level when the molding operation by the molding machine is temporarily interrupted. It is.

  The monitoring range A4 is a setting item for defining the normal range of each output value of the heater to be controlled. For example, when the monitoring range A4 is set to “20.00” ° C., the molding machine according to the present embodiment issues an alarm when the output value of the cylinder heater deviates from the target value within a range of ± 20.00 ° C. To emit.

  The cold start prevention time A5 is to determine the time from when all the output values of the respective heaters to be controlled are within the monitoring range A4 until the molding machine is started (time for prohibiting the start of the molding machine). This is a setting item. In the molding machine according to the present embodiment, for example, when the cold start prevention time A5 is set to “15” minutes, 15 minutes after all the output values of the respective heaters to be controlled are within the monitoring range A4. During this period, the start of molding operation is prohibited.

  The measured value display device D1 is an area for numerically displaying the current value of the heater to be controlled.

  The state display device G1 is an area for graphically displaying the current state of the heater to be controlled, and represents the current state using, for example, a scale G10 and a pointer G11.

  The scale G10 includes a reference scale and auxiliary scale areas arranged above and below the reference scale, the reference scale corresponds to the target value, and the upper and lower limits of the auxiliary scale area are the upper limit of the monitoring range and Corresponds to each of the lower limits.

  The position of the pointer G11 indicates the relative position of the current value of the heater to be controlled with respect to the target value. For example, if the target value is 0 ° C., the monitoring range is ± 20 ° C., and the current value is 19.99 ° C., the pointer G11 is positioned near the upper limit of the auxiliary scale area.

  The use / non-use switch button B1 is a button for switching whether or not to execute control for each of the heaters mounted on the molding machine. In the present embodiment, the cylinder heater and the mold heater in the zone Z3 are not used, and the flow rate of the cooling water is not adjusted, so that the related buttons are not used (gray display).

  Under the above screen configuration, the access control unit 11 displays the heater temperature setting screen in a predetermined initial state as shown in FIG. 4 when no valid key code is input.

  Specifically, in the initial state of FIG. 4, the main setting A1, the heat retention setting A3, and the monitoring setting A4 are invisible compared to the all release state of FIG. 3, and the visualized purge setting A2 and the cold start prevention are performed. Time A5 is in an input-impossible state. Note that the contents of the initial state can be changed as appropriate.

  Then, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAA”, the access control unit 11 performs the first level release, as shown in FIG. The heater temperature setting screen is displayed in a partially released state.

  Specifically, in the partially released state in FIG. 5, the purge setting A2 and the cold start prevention time A5 are changed from the input prohibition display (background gray display) to the input acceptance display (background white display) as compared to the initial state of FIG. It is in a state to accept input.

  In addition, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAABBB”, the access control unit 11 performs the second level of release, as shown in FIG. The heater temperature setting screen is displayed in a partially released state.

  Specifically, the partial release state in FIG. 6 is a state in which the main setting A1, the heat retention setting A3, and the monitoring setting A4 are visualized in a state where input is not possible, as compared to the partial release state in FIG. .

  In addition, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAABBBCCCC”, the access control unit 11 performs the third level release, as shown in FIG. The heater temperature setting screen is displayed in a partially released state.

  Specifically, in the partially released state of FIG. 7, the heat retention setting A3 is switched from the input prohibition display (background gray display) to the input reception display (background white display) as compared to the partial release state of FIG. It is in a state.

  Further, when it is determined that the release key identified by the release key identification unit 10 is the valid key code “AAABBBCCCDDD”, the access control unit 11 performs the fourth level of release, as shown in FIG. The heater temperature setting screen is displayed in a partially released state.

  Specifically, in the partial release state of FIG. 8, the monitoring range A4 is switched from the input prohibition display (background gray display) to the input reception display (background white display) compared to the partial release state of FIG. It is in a state.

  With the above configuration, the molding machine equipped with the erroneous setting prevention system SYS can prohibit access to setting items other than the cancellation target setting item corresponding to the release key input by the operator, and the access prohibition is released. It is possible to prevent erroneous setting for setting items that are not set.

  In addition, the erroneous setting prevention system SYS employs a framework in which the release target setting items by the lower release key and the release contents thereof constitute a subset of the release target setting items by the upper release key and the release contents. Therefore, the erroneous setting prevention system SYS can be applied to a management policy in which access restrictions on the operating condition setting of the molding machine are gradually released as the skill level of the operator regarding the operating condition setting of the molding machine increases. It becomes.

  Next, another configuration example of the release key used in the erroneous setting prevention system SYS will be described with reference to FIG.

  FIG. 9 is a diagram illustrating a configuration example of a release key and a release key receiving device, and includes four insertion release keys K1 to K4 and a key cylinder 2A as a release key receiving device into which the release keys K1 to K4 are inserted. Indicates.

  The release key K1 corresponds to the release key as an electronically exchanged code having the valid key code “AAA” in FIG. 2, and is inserted from the initial position IP of the key cylinder 2A when inserted into the key cylinder 2A. The key cylinder 2A can be rotated to one position P1.

  The release key identifying unit 10 executes the first level release when the release key K1 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the first position P1.

  The release key K2 corresponds to the release key having the valid key code “AAABBB” in FIG. 2, and when inserted into the key cylinder 2A, the second position P2 passes through the first position P1 from the initial position IP of the key cylinder 2A. The key cylinder 2A can be rotated up to.

  The release key identification unit 10 executes the second level of release when the release key K2 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the second position P2.

  The release key K3 corresponds to the release key having the valid key code “AAABBBCCCC” in FIG. 2, and when inserted into the key cylinder 2A, the first position P1 and the second position P2 from the initial position IP of the key cylinder 2A. Then, the key cylinder 2A can be rotated to the third position P3.

  The release key identifying unit 10 executes the third level of release when the release key K3 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the third position P3.

  The release key K4 corresponds to the release key having the valid key code “AAABBBCCCDDD” in FIG. 2, and when inserted into the key cylinder 2A, the first position P1, the second position P2, the initial position IP of the key cylinder 2A, The key cylinder 2A can be rotated to the fourth position P4 through the third position P3.

  The release key identifying unit 10 executes the fourth level of release when the release key K4 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the fourth position P4.

  The release key identification unit 10 does not execute the first level release even when the release key K2 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the first position P1. Also good. This is because when the key cylinder 2A is rotated to the second position P2, the second level release including the first level release is executed.

  When the release key K3 is inserted into the key cylinder 2A and the key cylinder 2A is rotated to the first position P1 or the second position P2, the release key K4 is inserted into the key cylinder 2A, and the key cylinder 2A is The same applies to the case of being rotated to the position P1, the second position P2, or the third position P3.

  With the above configuration, the molding machine equipped with the erroneous setting prevention system SYS has a release key as an electronically exchanged code via a touch panel or the like even when the insertion type release keys K1 to K4 are used. It is possible to achieve the same effect as when input.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

  For example, in the above-described embodiment, the release key as a code exchanged electronically is configured by concatenating a plurality of partial key codes in order from the lower order to the upper order, but the order of connection is changed. May be.

  Specifically, the release key “AAABBBBCCCDD” may be “AAADDDBBBCCC” or “AAACCBBBBDDD”. However, the rearrangement of the connection order does not change the cancellation target setting item or the content of the cancellation, and does not enable multiple levels of cancellation.

  In the above-described embodiment, the release key identifying unit 10 displays the release key input screen on the display device 3 when the key input switch is turned on. For example, when various setting screens are displayed, It may be displayed in conjunction with other operations, such as when the setting screen is switched.

  DESCRIPTION OF SYMBOLS 1 ... Control part 2 ... Release key acceptance apparatus 2A ... Key cylinder 3 ... Display apparatus 10 ... Release key identification part 11 ... Access control part B1 ... Use / non-use switching Button D1 ... Actual value display device A1 ... Main setting A2 ... Purge setting A3 ... Insulation setting A4 ... Monitoring range A5 ... Cold start prevention time G1 ... Status display device G10 ... Scale G11 ... Pointer K1-K4 ... Release key SYS ... Error setting prevention system

Claims (2)

A molding machine comprising: a display device that displays a setting screen that includes a setting item that is prohibited from being accessed by an operator; and a release key receiving device that receives a release key that cancels the prohibition of access to the setting item,
The degree of release by the release key is set in stages,
The release contents of the setting items whose access prohibition is canceled by the release key having a high release degree include all the release contents of the setting items whose access prohibition is released by the release key having a low release degree,
The release key is composed of an electronically exchanged code,
The release key code with a high release degree is configured by adding a predetermined key code to the release key code with a low release degree.
A molding machine characterized by that. Prohibition of access to the setting item includes invisibility of the setting item, prohibition of input to the setting item, or limitation of a settable width of the setting item.
The molding machine according to claim 1.

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