JP6480804B2 - Molding machine control device and molding machine - Google Patents

Description

  The present invention relates to a molding machine control device and a molding machine. The molding machine is, for example, a die casting machine or an injection molding machine.

  The molding machine is a mold clamping device for clamping a mold, an injection device for injecting a molding material into the mold that has been clamped, and a molded product formed by solidifying the molding material injected into the mold. A plurality of operation parts such as an extrusion device for extruding from the mold are included. In addition, such an operation unit may include a plurality of lower operation units. For example, the mold clamping device may have a mold opening / closing drive device and a mold clamping drive device separately. As described above, the molding machine has a plurality of operation units, and thus performs a plurality of types of operations.

  For example, the molding machine starts a molding cycle in accordance with an operation of an operator (operator) with respect to the operation unit, and executes a plurality of types of operations in a predetermined order in the molding cycle. In addition, the molding machine can individually execute a plurality of types of operations outside the molding cycle in accordance with the operator's operation on the operation unit in order to prepare the molding cycle or check the operation of each operation unit. is there.

  Patent Document 1 discloses a setup support method for displaying the work items on a touch panel in view of the complex and advanced preparation work (setup) of a molding cycle. Further, in Patent Document 2, the work item that has been selected by the worker based on the operation history of the touch panel of the worker so that the worker can easily grasp whether or not the work has actually been performed. A setup support method and apparatus for displaying work items that have not been selected in a separate display mode are disclosed.

JP 2004-155088 A Japanese Patent Application Laid-Open No. 2011-167876

  Even if an operator operates the operation unit so that the molding machine performs a predetermined operation, the molding machine does not perform the operation unless a predetermined operation condition is satisfied. This is because, for example, it is possible to reduce the possibility that a plurality of operating parts interfere with each other and damage the operating parts, or to ensure the safety of the operator. In this case, it is difficult for an inexperienced worker to specify an operation condition that is not satisfied and perform an operation for satisfying the operation condition on the molding machine.

  On the other hand, the techniques of Patent Documents 1 and 2 do not mention that the molding machine does not perform a predetermined operation when the operation condition is not satisfied. In the techniques of Patent Documents 1 and 2, if the work item displayed on the display unit is set so that the operation condition is satisfied, at least the molding cycle of the molding cycle is performed as long as the worker executes the displayed work item without error. In preparation, the molding machine operates. However, for example, the techniques of Patent Documents 1 and 2 cannot cope with a case where an operator attempts to operate an arbitrary operation unit at an arbitrary time other than preparation of a molding cycle. Further, for example, whether or not the work is actually performed is based on the operator's operation on the touch panel to the last, and may be different from the actual state of the molding machine.

  Therefore, it is desired to provide a molding machine control device and a molding machine that can more appropriately reduce the burden on the operator in the operation of the molding machine.

  A control device for a molding machine according to an aspect of the present invention is a control device that controls a molding machine main body capable of executing a plurality of types of operations, and accepts an operation instructing execution of any of the plurality of types of operations. The operation unit, the display unit for displaying the image, and whether or not the operation condition for executing the operation instructed to be executed in the operation unit is satisfied. Output a control signal that causes the molding machine body to execute the specified operation, and if it is determined that the operation is not established, the control signal is established without outputting the control signal that causes the molding machine body to execute the specified operation. And a control main body unit that displays an image indicating an operation for establishing a non-operating condition on the display unit.

  Preferably, when there are a plurality of unsatisfied operating conditions, the control main body unit is configured so that one operating condition satisfies another operating condition among the plurality of unsatisfied operating conditions. The order in which the operating conditions are established is determined based on whether or not the operating conditions are satisfied, and the execution order of the plurality of operations for establishing the plurality of unsatisfied operating conditions is determined based on the order. , And an image showing the plurality of operations is displayed on the display in a manner that indicates the priority of the specified execution order.

  Preferably, the control main body section displays an image indicating an operation for establishing the unsatisfied operating condition on the display, and then determines whether or not the unsatisfied operating condition is established. If it is determined that the image is established, an image indicating the operation for establishing the image is erased on the display unit.

  Preferably, when the operation instructed to be executed by the operation unit is composed of a plurality of operations, the control main body unit performs an operation that cannot be performed individually by the non-established operation condition among the plurality of operations. An image shown together with an operation for satisfying the unsatisfied operating condition is displayed on the display.

  Preferably, the control main body section shows an operation that cannot be executed under the operation condition that is not satisfied, which is different from the operation instructed to be executed by the operation section, together with an operation for satisfying the operation condition that is not satisfied. Is displayed on the display.

  The molding machine which concerns on 1 aspect of this invention has the said molding machine main body and the control apparatus of said molding machine.

  According to the present invention, an operator's burden on the operation of the control device can be reduced.

The schematic diagram which shows the structure of the principal part of the die-casting machine which concerns on embodiment of this invention. The block diagram which shows the structure of the signal processing system of the die-casting machine of FIG. The front view which shows the external appearance of the operation panel of the die-casting machine of FIG. The figure which shows the example of the screen of the operation assistance apparatus of FIG. The flowchart which shows an example of the procedure of the process which the control apparatus of FIG. 2 performs.

  FIG. 1 is a side view (partly including a sectional view) showing a die casting machine 1 according to an embodiment of the present invention.

  The die casting machine 1 is configured, for example, as an apparatus for forming a die cast product (molded product) by filling a cavity Ca of a mold 101 having a fixed mold 103 and a movable mold 105 with a molten metal (molding material). . The molten metal is a molten metal. A semi-solid metal may be used instead of the molten metal. The metal is, for example, aluminum.

  The die casting machine 1 includes, for example, a machine main body 3 and a control device 5 that controls the machine main body 3. The machine body 3 may have the same configuration as various known configurations. FIG. 1 shows an example. Further, the control device 5 may be the same as various known configurations except for a configuration for assisting an operator (operator) to operate the die casting machine 1. In the following, first, the basic configuration of the die casting machine 1 will be mainly described, and then, the configuration for supporting the operator's operation on the die casting machine 1 will be mainly described.

(1) Basic Configuration The machine body 3 includes, for example, a mold clamping device 7 for clamping the mold 101, a core entry / exit device 9 for moving the moving core 107 in and out of the mold 101, and the mold clamped An injection device 11 for injecting molten metal into the mold 101, an extrusion device 13 for extruding a die-cast product from the fixed mold 103 or the moving mold 105 (the moving mold 105 in this embodiment), and a mold release agent for the mold 101 And a spraying device 15 for coating.

  The mold clamping device 7 is, for example, movable on the base 17, the fixed die plate 19 fixed on the base 17 and holding the fixed mold 103, and the mold opening / closing direction (left and right direction in FIG. 1) on the base 17. And a movable die plate 21 that holds the movable mold 105, and a fixed die plate 19 and a plurality of (typically four) tie bars 23 that are hung on the movable die plate 21.

  The mold clamping device 7 is, for example, a toggle type. When the mold clamping cylinder 25 as a drive source expands and contracts, the movable die plate 21 is driven in the mold opening / closing direction via the toggle mechanism. As a result, the mold 101 is opened and closed. Further, when the mold clamping cylinder 25 is extended with the mold closed, a tensile force is applied to the tie bar 23, whereby the mold 101 is clamped.

  The core entry / exit device 9 includes, for example, a core cylinder 27 supported by one of the fixed mold 103 and the movable mold 105 (in this embodiment, the movable mold 105). The core portion of the core cylinder 27 is fixed to the moving mold 105, and the moving core 107 is fixed to the piston rod. When the core cylinder 27 is driven, the moving core 107 is put in and out between the fixed mold 103 and the moving mold 105. Although only one core access device 9 is shown in FIG. 1, the core access devices 9 are provided in an appropriate direction and in an appropriate number according to the shape of the die cast product.

  The injection device 11 includes, for example, a sleeve 29 that communicates with the cavity Ca, a plunger 31 that pushes the molten metal in the sleeve 29 into the cavity Ca, and an injection cylinder 33 that is connected to the plunger 31. The cylinder portion of the injection cylinder 33 is fixedly provided, and the piston rod is connected to the plunger 31.

  When the plunger 31 is driven in a direction (forward direction) toward the cavity Ca by the injection cylinder 33 in a state where the molten metal is supplied into the sleeve 29 from a hot water supply port (not shown), the molten metal in the sleeve 29 is pushed out to the cavity Ca. It is. That is, injection is performed. Further, the injection cylinder 33 continuously applies a driving force in the forward direction to the plunger 31 even after the melt is almost filled in the cavity Ca. Thereby, the pressure increase and holding | maintenance pressure of a molten metal are performed. In addition, when the molten metal is solidified and mold opening is performed, the injection cylinder 33 applies a driving force in the forward direction to the plunger 31 in the initial stage. As a result, the die-cast product is pushed by the plunger 31 and the mold release from the fixed mold 103 is urged. That is, extrusion follow-up is performed.

  The extrusion device 13 includes, for example, an extrusion pin 35 that can protrude from the movable mold 105 toward the cavity Ca, and an extrusion cylinder 37 that drives the extrusion pin 35. The push pin 35 is inserted through the moving mold 105, for example. The cylinder part of the extrusion cylinder 37 is fixed to the moving die plate 21 by an appropriate member (not shown), and the piston rod is fixed to the extrusion pin 35 via an extrusion plate or an extrusion rod.

  After the molten metal is solidified to form a molded product and the mold is opened to some extent, when the extrusion pin 37 is driven to protrude toward the cavity Ca by the extrusion cylinder 37, the molded product is moved by the extrusion pin 35. Extruded from the mold 105.

  The spray device 15 includes, for example, an arm 39 provided on the upper portion of the fixed die plate 19 and a plurality of nozzles 41 held by the arm 39. The plurality of nozzles 41 are constituted by, for example, a plurality of pipes, and are inserted and removed by the arm 39 between the fixed mold 103 and the movable mold 105 which are opened. Then, in a state where the plurality of nozzles 41 are disposed between the fixed mold 103 and the movable mold 105, the mold release agent is ejected from the nozzle 41, so that the mold release agent is placed inside the mold 101. Applied.

  The control device 5 is disposed at an appropriate position with respect to the machine body 3. Note that the control devices 5 may be arranged in a distributed manner. The control device 5 includes, for example, a display 43 and an operation panel 45 that mediate between the control device 5 and an operator at an appropriate position such as a side of the fixed die plate 19.

  The display 43 is, for example, a touch panel, and by detecting a display device that displays an image and a position (a position pressed or touched with a finger or a dedicated pen) on the screen of the display device. And an input device that receives an input operation. The specific structure may be a known appropriate one. The display device 43 has a configuration related to the operation support of the present embodiment. However, like the conventional configuration of this type, the display device 43 designates an operation to be executed by the machine body 3 and sets a target value for controlling the operation. Or monitoring the operating state of the machine body 3. The operation panel 45 includes a plurality of switches, and accepts, for example, an operator's operation for causing the machine body 3 to execute a predetermined operation.

  FIG. 2 is a block diagram showing the configuration of the signal processing system of the die casting machine 1.

  As described above, the die casting machine 1 includes the machine body 3 and the control device 5 that controls the machine body 3, and signals are transmitted and received between them.

  As described above, the machine main body 3 may have the same configuration as that of various known ones. The machine body 3 has a plurality of operation units 47 (only one is shown in FIG. 2). The operation unit 47 is an abstraction of the mold clamping device 7, the core entry / exit device 9, the injection device 11, the extrusion device 13, the spray device 15, and the like. Note that the operating unit 47 may be a device obtained by further subdividing each of these devices, or conversely, a device in which several devices are combined.

  The operation unit 47 includes various sensors such as a pressure sensor 49 and a position sensor 51 for detecting the state of the operation unit 47, for example. For example, if the operation unit 47 is the mold clamping device 7, the pressure sensor 49 detects the pressure in the cylinder chamber of the mold clamping cylinder 25, and the position sensor 51 detects the position of the movable die plate 21. Etc. Further, for example, when the operation unit 47 is the injection device 11, the pressure sensor 49 detects the pressure in the cylinder chamber of the injection cylinder 33, and the position sensor 51 detects the position of the plunger 31. is there. Each operation unit 47 does not need to have both the pressure sensor 49 and the position sensor 51, and conversely, may have another sensor such as a limit switch (position sensor in a broad sense). .

  Further, the machine body 3 has a sensor and / or another operation unit separately from the operation unit 47. In FIG. 2, the limit switch 53 and the solenoid valve 55 are illustrated. The limit switch 53 is, for example, for detecting that a door (not shown) for prohibiting an operator from entering between the fixed die plate 19 and the movable die plate 21 is closed. The solenoid valve 55 is for allowing and prohibiting the supply of hydraulic fluid from, for example, a pump (not shown) to hydraulic circuits (for example, hydraulic circuits) of the plurality of operating units 47. These sensors and operation units, and the operation unit 47 may be distinguished from differences in the specific configuration of the control device 5 for controlling them, as will be understood from the following description, for example.

  In addition to the display device 43 and the operation panel 45 described above, the control device 5 substantially controls the machine body 3 and controls the display device 43, and a buzzer 59 that outputs a notification sound. have.

  The control main body 57 includes, for example, a PLC (programmable logic controller) 61 for controlling the operation of the entire machine main body 3 and a plurality of lower-level control units 63 that control the plurality of operation units 47 based on control signals from the PLC 61. (Only one is shown in FIG. 2) and an operation support processing unit 65 that controls the display 43 and the buzzer 59 based on a signal from the PLC 61. For example, the lower control unit 63 is provided for each operation unit 47.

  The PLC 61, the lower control unit 63, and the operation support processing unit 65 are configured by a computer including a CPU, a ROM, a RAM, and an external storage device, for example, although not particularly illustrated. Note that the PLC 61, the lower-level control unit 63, and the operation support processing unit 65 are configured separately, for example, in terms of hardware, and are connected to each other via a cable or the like. However, these may be appropriately combined in terms of hardware.

  The PLC 61 outputs a control signal to the machine body 3 directly or indirectly via the lower control unit 63 based on the operation signal from the operation panel 45. The operation signal input from the operation panel 45 to the PLC 61 is, for example, a signal that designates one of a plurality of types of operations that can be executed by the machine body 3 and a signal that instructs execution of the designated operation. In the machine body 3, a control signal is directly input from the PLC 61 (however, a driver is interposed), for example, to a solenoid valve 55. In the machine body 3, the control signal is indirectly input from the PLC 61 via the lower level control unit 63 (and the driver therebetween), for example, in the operation unit 47 (7, 9, 11, 13, 15 and the like). is there.

  The PLC 61 receives detection signals from various sensors of the machine body 3 directly or indirectly through the lower control unit 63 and uses the signals for control of the machine body 3. For example, a limit switch 53 outputs a detection signal directly to the PLC 61 (however, an amplifier or the like may be interposed). The detection signal is indirectly output to the PLC 61 via the low-order control unit 63 (further, an amplifier or the like may be interposed), for example, by the operation unit 47 (7, 9, 11, 13, and 15). Sensors (49, 51).

  The PLC 61 can selectively execute control for the molding cycle and control for the operation of each operation unit outside the molding cycle. The control is switched by, for example, an operation on the operation panel 45.

  In the molding cycle, the PLC 61 allows the machine main body 3 to perform a predetermined operation in a predetermined order (so that the plurality of operating sections 47 operate in conjunction with each other). Control signals are output sequentially. Thereby, for example, in the molding cycle, the moving core 107 is inserted by the core loading / unloading device 9, the mold is closed and clamped by the mold clamping device 7, the injection is performed by the injection device 11, the mold is opened by the mold clamping device 7, and the core is Extraction (returning) of the moving core 107 by the loading / unloading device 9, extrusion follow-up by the injection device 11, extrusion by the extrusion device 13, and spraying by the spray device 15 are sequentially performed. Further, the PLC 61 repeatedly outputs the control signal as described above at a predetermined cycle so that such a molding cycle is repeated. Such a molding cycle or its repetition is started, for example, with a predetermined operation on the operation panel 45 as a trigger.

  Further, the PLC 61 can output a control signal for individually operating each operation unit 47 outside the molding cycle. That is, the PLC 61 can output a control signal for operating any one of the plurality of operation units 47 to the machine body 3 at any timing. At this time, the control amount (for example, movement amount) of the operation unit 47 may be set arbitrarily. Thereby, for example, before starting the molding cycle or when some abnormality occurs in the molding cycle, the operation of each operation unit 47 can be confirmed. Such an operation is performed in accordance with a predetermined operation on the operation panel 45, for example.

  When a predetermined operation is instructed by an operation on the operation panel 45 or the like, the PLC 61 determines whether or not an operation condition assumed for the operation is satisfied in the machine body 3, and determines that it is satisfied. When it is determined, the control signal for executing the operation is output to the machine main body 3, and when it is determined that the operation is not established, the control signal for executing the operation is not output to the machine main body 3. The configuration for control based on this operating condition may be the same as a known one. For example, the program of the PLC 61 may be configured so that a predetermined operation is executed only when a predetermined operation condition is satisfied. An example of the operation condition will be described later together with the description of the operation support.

  The subordinate control unit 63, for example, the operation mode of the operation unit 47 (for example, which is forward or backward, etc., and hereinafter, the operation mode may also be described in terms of operation), and the operation mode. The control signal according to the configuration of the operation unit 47 is received so that the control signal specifying the target value of the control such as the position and / or the speed is received from the PLC 61 and the operation specified by the received control signal is realized. Is output to the operation unit 47. Note that the division of roles between the lower control unit 63 and the PLC 61 may be set as appropriate. Further, the lower control unit 63 may be included in the PLC 61.

  For example, the operation support processing unit 65 generates predetermined image data based on a signal from the PLC 61, and outputs an image signal including the image data (may be regarded as a kind of control signal) to the display unit 43. To do. Further, when the display device 43 is a touch panel, the operation support processing unit 65 converts the information on the position specified on the screen of the display device 43 into appropriate input information, and outputs a signal including this information to the PLC 61. To do. Further, the operation support processing unit 65 outputs a control signal to the buzzer 59 based on a signal from the PLC 61 so that the buzzer 59 outputs sound with a predetermined time length, volume and / or pattern, for example. Note that the division of roles between the operation support processing unit 65 and the PLC 61 may be set as appropriate. For example, the operation support processing unit 65 is responsible for a part of the operation support processing (described later) executed by the PLC 61. Also good.

  The buzzer 59 has an electromagnet and a diaphragm that is vibrated by the electromagnet, and outputs sound by the vibration of the diaphragm. However, instead of the buzzer 59, an appropriate sound output device (for example, a speaker) may be provided, and a sound similar to the sound generated by the buzzer may be output, or a predetermined sound (language sound) may be output.

  The operation support processing unit 65, the display device 43, and the buzzer 59 constitute an operation support device 66. The operation support device 66 may be configured as a device that can be distributed independently from the PLC 61 or the like, for example, by storing the operation support processing unit 65, the display device 43, and the buzzer 59 in one housing. In addition, the operation support device 66 may include an operation support processing unit 65 and a display device 43 housed in one housing, and a buzzer 59 connected thereto.

  FIG. 3 is a front view showing the appearance of the operation panel 45.

  The operation panel 45 includes, for example, a switch area 45a in which a plurality of switches 71A to 71C (hereinafter, A to C may be omitted) and an indicator lamp area 45b in which a plurality of indicator lamps 73 are arranged. have.

  The plurality of switches 71 are, for example, for selecting (specifying) an operation to be executed by the machine main body 3 from a plurality of types of operations that can be executed by the machine main body 3, and for performing the selected operation. Contains. The configuration (type) of the plurality of switches, the correspondence between the plurality of switches and operations, and the like may be set as appropriate.

  For example, the switch 71A is for causing the die casting machine 1 to start a molding cycle, and is constituted by a key switch. In other words, the switch 71A is a switch for designating a series of operations including a plurality of operations.

  Further, for example, the plurality of switches 71B are for specifying the operations when the die casting machine 1 individually executes a plurality of types of operations outside the molding cycle, and are configured by rotary switches. Specifically, for example, the switch 71B includes an operation of moving the movable die plate 21 by the clamping cylinder 25, an operation of moving the extrusion pin 35 by the extrusion cylinder 37, an operation of moving the injection plunger 31 by the injection cylinder 33, and The core cylinder 27 is provided corresponding to each operation of moving the movable core 107. Further, for example, when a plurality of core cylinders 27 (moving cores 107) are provided, the switch 71B is provided corresponding to each of the core cylinders 27. The switch 71B can be switched between three positions: a position not instructing execution of these operations, a position instructing movement in one direction, and a position instructing movement in multiple directions. .

  Further, for example, the plurality of switches 71C are for instructing the die casting machine 1 to start execution of the operation specified by the switch 71B, and are configured by push button switches that are turned ON only while being pressed. When the switch 71C is pressed, in the machine body 3, the operation selected by the switch 71B (the operation switched from a position not instructing execution) is executed in the operation mode (movement direction) selected by the switch 71B. The

  In addition, when a plurality of operations are selected by the plurality of switches 71B and the switch 71C is operated, the die casting machine 1 does not perform another operation under the operation condition of one operation between the plurality of operations. As long as it is not included, the selected operations may be executed in parallel. Further, in such an aspect, when the operation condition is not satisfied for some of the plurality of operations, the die casting machine 1 may not execute all of the plurality of operations, or the operation condition is satisfied. The operation may be performed.

  Further, when the switch 71C is operated, the die casting machine 1 may execute the selected operation only while the switch 71C is operated (while the switch 71C is being pressed), or 1 for the switch 71C. It may be executed up to the driving limit of the operation (for example, if the mold is opened, the mold opening limit) for each operation (regardless of the length of operation time), or for one operation on the switch 71C. On the other hand, it may be executed with a predetermined control amount, or any one of the above aspects may be selectively executed according to the type of operation.

  The plurality of indicator lights 73 indicate the state of the machine body 3 and the like by turning on, turning off, and / or blinking. The indicator lamp 73 is controlled by, for example, the PLC 61 or a control unit (not shown) in the operation panel 45 that has received a signal from the PLC 61.

(2) Configuration or Operation Related to Operation Support The configuration or operation related to operation support in the die casting machine 1 having the above basic configuration will be described.

(2-1) Operation support display (display of an operation for establishing an operating condition that does not hold)
As described above, the control main body 57 (PLC 61), when instructed to execute a predetermined operation by the operation panel 45 or the like, determines whether or not an operation condition for executing the operation is satisfied, and is not satisfied. Is determined, the control signal for causing the machine body 3 to execute the operation is not output to the machine body 3. At this time, the control main body 57 identifies an operation for establishing the unsatisfied operating condition and causes the display 43 to display the identified operation. Thereby, when the machine main body 3 does not operate even when the operation panel 45 is operated, the operator can easily know an operation for eliminating the cause, and the burden on the operator is reduced.

  For example, the machine main body 3 can prohibit an operator from entering between the fixed die plate 19 and the movable die plate 21 by a door (not shown). The operating condition that is a precondition for mold opening / closing (mold opening or mold closing) includes that the door is closed in order to ensure the safety of the operator. Note that this operating condition is preset in the PLC 61 by the manufacturer of the die casting machine 1, for example. The PLC 61 can grasp whether or not the door of the machine body 3 is closed by a detection signal from the limit switch 53. The control main body 57 (PLC 61) outputs a control signal for executing mold opening / closing to the machine main body 3 when the door of the machine main body 3 is not closed when the mold opening / closing is instructed by the operation panel 45. Instead, an image instructing the operator to close the door is displayed on the display 43. The operating condition that the door is closed is also an operating condition for many other operations other than the mold opening and closing.

  For example, when the nozzle 41 of the spray device 15 is to be inserted between the molds 101 in a state where the mold is closed, the nozzles 41 come into contact with the mold 101. Therefore, the operating condition that is a premise of the operation of moving the nozzle 41 in the direction to insert it between the molds 101 includes that the mold is opened. Note that this operating condition is preset in the PLC 61 by the manufacturer of the die casting machine 1, for example. For example, the PLC 61 can grasp the position of the movable die plate 21 (that is, the state of mold opening / closing) by the position sensor 51 of the mold clamping device 7. The control main body 57 (PLC 61) moves the nozzle 41 when the operation panel 45 is instructed to move the nozzle 41 in the direction between the molds 101 when the mold is not opened. The control signal is not output to the machine body 3, and instead, an image instructing the operator to open the mold is displayed on the display 43.

  For example, in the case where there are a plurality of moving cores 107 and core entry / exit devices 9, a plurality of moving cores 107 interfere with each other unless the plurality of moving cores 107 are inserted into the mold 101 in an appropriate order. In some cases, the moving core 107 cannot be inserted. In such a case, the operating condition that is the premise for the insertion of the moving core 107 includes that the moving core 107 to be inserted after itself is not inserted. The insertion order of the cores (in other words, the operating conditions) is set in the PLC 61 by the operator of the die casting machine 1 via the touch panel display 43 or the like, for example. For example, the PLC 61 can grasp the position of the moving core 107 by the position sensor 51 of the plurality of core access devices 9. Then, when the operation body 45 is instructed to insert one of the plurality of moving cores 107 between the molds 101 by the operation panel 45, the control main body 57 (PLC 61) is another moving core to be inserted later. When 107 is inserted, a control signal for inserting the moving core 107 designated by the operation panel 45 is not output to the machine main body 3, but instead, the moving core 107 to be inserted later is pulled out. An image for instructing the operator is displayed on the display 43.

  FIG. 4 is a diagram illustrating an example of an image 75 displayed on the screen of the display device 43 when the operating condition is not satisfied.

  The image 75 includes an operation display area 75a indicating an operation for satisfying the operation condition, and an operation mode display area 75b indicating an operation mode not executed when the operation condition is not satisfied.

  The operation display area 75a includes, for example, one or more (two in FIG. 4) text 75aa indicating an operation for establishing the operation condition. For example, in FIG. 4, a text 75aa for instructing an operation of closing a door (not shown) for ensuring the safety of the operator with characters (sentences), and a driving limit (return limit) in the direction of pulling out one moving core 107. In this example, a text 75aa for instructing an operation to be moved is displayed.

  The operation for closing the door is, for example, an operation for closing the door manually. On the other hand, the operation of moving the moving core 107 is an operation performed on the operation panel 45 so that the core loading / unloading device 9 generates a driving force. As described above, the operation for operation support may be a direct operation on the machine main body 3 or an operation on the operation panel 45.

  In the example of FIG. 4, a plurality of texts 75aa are displayed in the operation display area 75a. In other words, there are a plurality of operations for satisfying the operation condition on the basis of the number of texts 75aa. The text 75aa may be one for one operation condition, may be plural for one operation condition, or may be one for a plurality of operation conditions. Good. It may be set as appropriate according to the operating conditions and the content of the operation for establishing the operating conditions.

(Displaying the priority of operation execution order)
When there are a plurality of operations (a plurality of texts 75aa), the plurality of operations are displayed in a manner indicating the priority of the execution order. For example, in the example of FIG. 4, a plurality of operations are displayed from the top in descending order of execution order priority.

  The priority may be set from various viewpoints. For example, when one operation is an operation condition for another operation (operation executed by the other operation), the one operation is displayed with higher priority than the other operation. Specifically, in the example of FIG. 4, there are an operating condition that one moving core 107 is located at the return limit and an operating condition that the door is closed, and of these, the door is closed. The operation condition that the movement core 107 is moved to the return limit is also the operation condition of the movement. Therefore, the priority of the operation for closing the door is displayed higher than the priority of the operation for moving the moving core 107 to the return limit. Thereby, the worker can establish the operation conditions in an appropriate order. In addition, the priority may be indicated from various viewpoints such as ease of work progress.

(Clear display of executed operations)
The executed operation is erased from the image on the display device 43. Thereby, the operator can know the operation to be executed without confusing the already executed operation with the operation to be executed.

(Display of actions not executed)
The operation mode display area 75b includes, for example, a plurality of texts 75ba indicating a plurality of operation modes (operations) with characters. Among them, the text 75ba of the operation that does not satisfy the operation condition (cannot be executed) is displayed in a color different from the text 75ba of the operation that satisfies the operation condition (can be executed). For example, these texts 75ba are displayed such that the text 75ba of the action that cannot be performed appears to be lit or blinking, and the text 75ba of the action that can be executed appears to be turned off.

  For example, when the operation designated by the operation panel 45 includes a plurality of operations, the operation indicated as the operation that cannot be executed is an operation that cannot be performed individually due to an operation condition that is not established among the plurality of operations (operation that is not established). Operation directly related to the condition). As a result, the worker can grasp the correspondence between the operation for which the operation condition is not satisfied and the operation for satisfying the operation condition, which leads to improvement of the operator's technique. The operation composed of a plurality of operations may be a series of operations (for example, a molding cycle) composed of a plurality of operations executed in a predetermined order, or a plurality of operations (parallel) specified by the plurality of switches 71B. A plurality of operations executed in the same manner). A series of operations may also be indicated as operations that cannot be executed by the text 75ba.

  The operation indicated as the operation that cannot be executed may be, for example, an operation that cannot be executed due to an operating condition that is different from the operation specified by the operation panel 45 and is not satisfied. Also in this case, the worker can grasp the correspondence between the operation for which the operation condition is not satisfied and the operation for satisfying the operation condition, which leads to improvement of the operator's technique. In this case, the operation itself specified by the operation panel 45 (although the operator should have grasped the operation panel 45) may also be indicated as an operation that cannot be performed.

(Support by sound)
The control main body 57 has operating conditions that are not satisfied, and causes the buzzer 59 to output sound when performing display for operation support as described above. Thereby, the worker can immediately notice that an operation or the like for establishing the operation condition that is not established is displayed on the display unit 43.

(2-2) Operation of the control main body 57 for realizing the operation support display Identification of the unfulfilled operation conditions necessary for the various operation support displays as described above, and operations for satisfying the operation conditions The specification of the priority of the execution order of the operation, the specification of the operation that cannot be executed due to the operating condition that is not established, and the like may be performed by the control main body unit 57 by an appropriate method. Specifically, for example, it is as follows.

(Identify operating conditions that have not been met)
For example, since the PLC 61 of the control main body 57 determines that the operation condition is satisfied according to programming, it can naturally specify the operation condition that is not satisfied.

  For example, the PLC 61 extracts the operation condition when it is determined that the operation condition is not established in the control routine executed to control the machine body 3 when the operation is instructed by the operation panel 45. (Specify) (for example, store in RAM).

  Further, for example, the PLC 61 determines that the operation condition is not satisfied, and after exiting the control routine without outputting the control signal to the machine body 3 (or after stopping the control routine), the PLC 61 follows the predetermined analysis program. The operating condition that is not satisfied may be specified. For example, the PLC 61 reads a program of its own control routine, extracts an operation condition for the operation instructed to be executed, and determines whether the extracted operation condition is satisfied or not from various sensors of the machine body 3. Collect and judge. As a result, the PLC 61 identifies operating conditions that are not satisfied (including operating conditions other than the operating conditions that have caused the control routine to exit).

(Identification of operations to establish operating conditions that are not satisfied)
When the PLC 61 specifies the operating condition that is not satisfied as described above, for example, the PLC 61 outputs a signal including information indicating the specified operating condition that is not satisfied to the operation support processing unit 65. On the other hand, the operation support processing unit 65 has, for example, a database in which information indicating a plurality of operation conditions is associated with data of a plurality of texts 75aa. Then, the operation support processing unit 65 searches the database using the unsatisfied operation condition specified based on the signal from the PLC 61 as a key, and extracts the text 75aa. That is, the operation support processing unit 65 specifies an operation for establishing an operating condition that is not satisfied. Thereafter, the operation support processing unit 65 generates image data for displaying the text 75aa obtained as a result of the search, and outputs the image data to the display unit 43.

  In the database, a plurality of texts 75aa may be associated with one operating condition. As a result, a plurality of texts 75aa are displayed on the display device 43 in order to establish one operating condition. The same text 75aa may be associated with a plurality of operating conditions. In this case, the operation support processing unit 65 searches the database using a plurality of unsatisfied operating conditions as a key, and as a result, when the same text 75aa is extracted, the image data is not displayed repeatedly. Is generated. Thereby, one text 75aa is displayed on the display 43 in order to establish a plurality of operating conditions.

  The database conceptually holds the information indicating the operating conditions and the data of the text 75aa as described above. Specifically, the database holds various information substantially the same as this. It's okay. For example, the database does not hold the text 75aa itself in association with the information indicating the operating condition, but holds information that is a key for extracting the text 75aa from another database. It may be. The same applies to the holding of information in other databases described later.

(Identify priority of execution order of operations)
For example, the operation support processing unit 65 has a database in which information indicating a plurality of texts 75aa is associated with information indicating a plurality of execution order priorities. Then, when the text 75aa is specified based on the operating condition that is not established as described above, the operation support processing unit 65 extracts information indicating the priority of the execution order using the text 75aa as a key. Note that the database in which the text 75aa and the priority of the execution order are associated may be integrated with the database that stores the operation condition and the text 75aa in association with each other. In this case, the operation condition is a key. And the text 75aa and the priority of the execution order are extracted together. Then, when generating the image data including the text 75aa as described above, the operation support processing unit 65 generates the image data so that the images are displayed in descending order of execution order.

  The priority of the execution order of the operations may be specified not by the operation support processing unit 65 based on the database as described above but by the PLC 61 based on the program of the control routine of the PLC 61. For example, the PLC 61 establishes the operating condition based on whether one operating condition is an operating condition for establishing another operating condition among a plurality of operating conditions that are not satisfied. Specify order priority. More specifically, for example, as described above, when the operation condition that the door is closed is the premise of the operation condition of the operation of moving the moving core 107 to the return limit, The priority is set higher than the latter priority. The PLC 61 can perform such identification by reading out its own control routine program and extracting operating conditions in accordance with a predetermined analysis program.

  In this way, when the PLC 61 specifies the priority of the order in which the operation conditions are satisfied, for example, the operation support processing unit 65 that has received the signal including the priority information from the PLC 61 sets a plurality of operation conditions that are not satisfied. A plurality of texts 75aa are extracted from the database as keys. Then, the operation support processing unit 65 generates image data so that the plurality of texts 75aa are displayed in order according to the priority of the order in which the operation conditions from the PLC 61 are satisfied.

  The identification method based on the database by the operation support processing unit 65 and the identification method based on the program analysis by the PLC 61 may be combined. For example, when one operating condition is not an operating condition for establishing another operating condition among a plurality of operating conditions that are not satisfied, the PLC 61 determines the priority of the order in which the operating conditions are satisfied. (However, even in such a case, the PLC 61 may set the priority appropriately based on a database or the like as in the operation support processing unit 65 and transmit the information.) And the operation assistance process part 65 specifies a priority based on a database, when there exists an operation condition (operation) by which the priority is not specified by PLC61. In addition, for example, the operation support processing unit 65 determines the priority of an operation when a plurality of operations are associated with one operation condition while following the priority of the order in which the operation conditions are established from the PLC 61. Identify based on the database.

(Identify actions that cannot be performed)
The operation support processing unit 65 has, for example, a database in which information indicating a plurality of operation conditions is associated with information indicating a plurality of operations. This database may be integrated with a database that holds the plurality of operating conditions and the plurality of texts 75aa in association with each other. When the operation support processing unit 65 identifies an operation condition that is not established based on a signal from the PLC 61, the operation support processing unit 65 searches the database using information indicating the operation condition as a key, and extracts information indicating the operation. Then, when generating the image data including the text 75aa (and 75ba), the operation support processing unit 65 generates the image data so that the extracted operation is displayed in a manner different from other operations. .

  For example, the operation support processing unit 65 may generate image data so that all the extracted operations are displayed as operations that cannot be performed. In this case, for example, an operation instructed by the operation panel 45 and an operation that cannot be executed differently from this are indicated on the display unit 43 as an operation that cannot be executed due to an operating condition that is not satisfied.

  For example, the PLC 61 transmits operation information designated by the operation panel 45 to the operation support processing unit 65, and the operation support processing unit 65 performs an operation indicated as an operation that cannot be performed based on the operation information. You may choose from the actions extracted from the database. For example, the operation support processing unit 65 is indicated as an operation in which only the operations included in the series of operations cannot be performed when a series of operations are designated by the operation panel 45, or a plurality of operations are performed by the operation panel 45. When specified, it is indicated as an operation that cannot be executed only in the operations included in the plurality of operations, or an operation that cannot be executed only from operations extracted from the database other than those specified by the operation panel 45. Image data may be generated as shown.

  FIG. 5 is a flowchart showing a procedure of processing executed by the control main body 57 in order to realize the operation support operation as described above.

  In step ST1, the control main body 57 determines whether or not execution of a predetermined operation is instructed by the operation panel 45. When it is determined that the operation is instructed, the process proceeds to step ST2, and when it is determined that it is not instructed, Wait until it is determined that it is instructed.

  In step ST2, the control main body 57 determines whether or not the operation condition is satisfied for the operation instructed to be executed by the operation panel 45. When it is determined that the operation is satisfied, the process proceeds to step ST3. If it is determined that it is not, the process proceeds to step ST5.

  In step ST3, the control main body 57 outputs a control signal to the machine main body 3 so that the operation instructed to be executed by the operation panel 45 is executed.

  In step ST4, the control main body 57 causes the display 43 to display an image that is displayed when the operating condition is satisfied (an image in which an operation for establishing the operating condition is not displayed).

  In step ST5, the control main body 57 identifies an operating condition that is not satisfied. For example, as already described, the PLC 61 identifies an operating condition that is not satisfied based on signals from various sensors of the machine body 3 while analyzing its own program.

  In step ST6, the control main body 57 executes according to one or more operations for establishing the unsatisfied operation condition specified in step ST5, the priority of the execution order of the operations, and the unsatisfied operation condition. Identify actions that will not be performed.

  In step ST7, the control main body 57 generates image data based on the information such as the operation specified in step ST5, and transmits the image data to the display 43, thereby causing the display 43 to display the operation and the like. . Then, the process returns to step ST2.

  Thereafter, steps ST2 and after are repeated, and if the operating conditions are satisfied, steps ST3 and ST4 are executed. At this time, in the loop of steps ST2 to ST7, the operation displayed on the display device 43 is reduced, and in step ST4, it is completely erased.

  After step ST7, in order to establish the operation condition, the operation panel 45 may instruct execution of the operation separately from step ST1. In this case, for the newly instructed operation, only normal control without operation support may be performed, or control with operation support may be performed. In the latter case, for example, a process similar to that shown in FIG. 5 is executed for a newly designated operation in a separate routine, and separately from the image for the previously designated operation (for example, using a tab-type graphic user interface). The operation etc. may be displayed on the display 43.

  As described above, in the present embodiment, the control device 5 that controls the machine body 3 that can execute a plurality of types of operations includes the operation panel 45 that receives an operation instructing the execution of any of the plurality of types of operations, and the image. A display 43 for displaying and a control main body 57 for controlling the machine main body 3 and the display 43 are provided. The control main body 57 determines whether or not an operation condition for executing an operation instructed to be executed on the operation panel 45 is satisfied (step ST1). When a control signal for causing the machine body 3 to execute the operation is output (step ST3) and it is determined that the operation is not established, the control signal for causing the machine body 3 to execute the specified operation is established without being output. An image indicating an operation for satisfying a non-operating condition is displayed on the display 43 (step ST7).

  Therefore, in this embodiment, when the machine main body 3 does not operate, an operation for eliminating the cause is presented to the worker, and the burden on the worker is reduced. Further, the instructed operation and the display of the operation for establishing the operation condition are selectively executed based on the determination result of the operation condition. From another viewpoint, the operation support device 66 that presents an operation method to the worker does not operate separately from the PLC 61 but operates in conjunction with the PLC 61. That is, the control of the machine main body 3 and the display device 43 is conceptually integrated in the control main body 57. As a result, for example, the actual state of the machine body 3 can be reflected in the operation support image. As a result, for example, the operation support device 66 is less likely to mistakenly recognize that an operation that has not actually been performed has been executed, and thus operation support can be performed more accurately.

  In the above embodiment, the die casting machine 1 is an example of a molding machine, the machine body 3 is an example of a molding machine body, the operation panel 45 is an example of an operation unit, and the display unit 43 is an example of a display unit. It is.

  The present invention is not limited to the above embodiment, and may be implemented in various aspects.

  For example, the molding machine is not limited to a die casting machine, and may be an injection molding machine that molds plastic, or may be another metal molding machine. Further, the molding machine is not limited to horizontal mold clamping and horizontal injection, and may be a vertical mold and / or vertical injection. Further, the molding machine is not limited to one driven by a hydraulic device (hydraulic device), but may be one driven by an electric motor, or a hybrid type combining a hydraulic device and an electric motor. There may be.

  The operation unit is not limited to an operation panel provided with a mechanical switch, and may be a combination of a touch panel and a mechanical switch, for example. The display unit is not limited to a touch panel, and may have only a display function. Further, the display unit is not limited to one that is configured integrally with an operation panel or the like, and may be a display of a personal computer that is retrofitted, for example.

  When there are a plurality of operations for establishing an unsatisfied operating condition, the priority of the execution order may not be displayed. Even in the configuration in which the execution order priority is displayed, the priority may not be displayed when there is no need to indicate the priority, such as when there is no execution order priority among a plurality of operations.

  As mentioned in the embodiment, the priority of the execution order may be set in advance by the manufacturer of the molding machine, or may be set by an operator of the molding machine via an appropriate input device. The priority setter may be different for each operation. The display mode for indicating the priority is not limited to the mode in which the priority is displayed in order from top to bottom. For example, the mode in which the priority is displayed in order from left to right, the priority is high. It may be a mode in which the items are displayed in order from the bottom to the top, or a mode in which numbers or marks indicating the execution order are attached to the operation items.

  An operation that cannot be executed due to an unsatisfied operating condition may not be indicated. Moreover, the display mode indicating the operation that cannot be performed is not limited to the mode of lighting or blinking the operation that cannot be performed. For example, only the operation that cannot be performed may be displayed and the other operations may not be displayed.

  DESCRIPTION OF SYMBOLS 1 ... Die casting machine (molding machine), 3 ... Machine main body (molding machine main body), 5 ... Control apparatus, 43 ... Display (display part), 45 ... Operation panel (operating part), 57 ... Control main-body part.

Claims (6)

A control device for controlling a molding machine body capable of performing a plurality of types of operations,
An operation unit that receives an operation instructing execution of any of the plurality of types of operations;
A display for displaying an image;
Whether or not an operation condition for executing an operation instructed to be executed in the operation unit is satisfied, with an operation condition being the state of the molding machine body established by an operation on the molding machine body or an operation on the operation unit When it is determined that it has been established, it outputs a control signal for causing the molding machine main body to execute the designated operation, and when it is determined that it has not been established, the designated operation is performed on the molding machine main body. A control main body that displays an image indicating an operation for establishing an operating condition that is not satisfied without outputting a control signal to be executed on the display,
A control device of a molding machine having In the case where there are a plurality of operating conditions that are not satisfied, the control main body section has an operating condition for an operation for one operating condition to establish another operating condition among the plurality of operating conditions that are not satisfied. The order in which the operation conditions are established is determined based on whether or not the operation conditions are established, and the priority of the execution order of the plurality of operations for establishing the plurality of operation conditions that are not established is determined based on the order. The control device for a molding machine according to claim 1, wherein an image indicating the plurality of operations is displayed on the display unit in a manner that indicates the priority of the specified execution order. The control body unit displays an image indicating an operation for establishing the unsatisfied operation condition on the display unit , and then determines whether or not the unsatisfied operation condition is established. 3. The molding machine control device according to claim 1, wherein when the determination is made, the display unit erases an image indicating an operation for establishing the establishment. When the operation instructed to be executed by the operation unit is composed of a plurality of operations, the control main body unit establishes an operation that cannot be performed individually by the non-established operation condition among the plurality of operations. molding machine control apparatus according to any one of claims 1 to 3, the image shown together with the operation for establishing the free operation condition is displayed on the display unit. The display unit displays an image indicating an operation that cannot be executed under the operation condition that is not established, together with an operation for establishing the operation condition that is not satisfied, different from the operation instructed to be executed by the operation unit. The control apparatus of the molding machine of any one of Claims 1-4 displayed. A control device for a molding machine according to any one of claims 1 to 5,
The molding machine body;
A molding machine with

Images