JPH0767609B2 - Die casting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a die-casting machine provided with a controller mainly composed of a micro-computer for centrally controlling the entire die-casting machine and a CRT display. The present invention relates to a die casting machine that can realize a regular inspection method that can be correctly executed on the inspection day of a period.

[Prior Art] Conventionally, when inspecting a die casting machine, when the inspection day comes, the operator follows the inspection schedule, etc.
The method of sequentially inspecting inspection items while referring to a manual etc. is generally taken, and in reality, some users have only performed inspections when a machine malfunctions or occurs. is there.

[Problems to be Solved by the Invention] As described above, conventionally, an operator or a person in charge of work recognizes an inspection date by a schedule table, a calendar, or the like,
Although the regular inspection is performed, the user often ignores or forgets the regular inspection date, or sets the necessary inspection date interval to be extended. Therefore, problems such as a cause of machine trouble and a shortened machine life have been pointed out. In addition, it is relatively troublesome to carry out inspections by turning over the instruction manuals and manuals while referring to the inspection items and specific instructions related to these, and if the instruction manuals or manuals are lost, the inspection items may become unclear. There was also a problem that correct inspection could not be performed.

The present invention has been made in view of the above points, and an object of the present invention is to provide a die casting machine capable of prompting an operator to perform a regular inspection on an accurate expected inspection date. Especially.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides an arithmetic processing unit for controlling the entire die scat machine and a CRT display for displaying various display modes by the output of the arithmetic processing unit. In a die casting machine equipped with a display device and a key input device, the arithmetic processing unit automatically displays a regular inspection display mode screen on the display device when the periodic inspection date is recognized by the built-in clock. , Configured to prompt the operator for inspection.

[Operation] As described above, the clock (timer) in which the arithmetic control means of the die casting machine itself is built-in recognizes the regular inspection date, and the regular inspection display mode screen is automatically displayed on the display device, and the operator is informed. By recognizing that the inspection date and time has arrived, you can avoid situations such as forgetting the inspection date and missing the inspection time.In addition, for example, on the regular inspection display mode screen, the inspection items and specific instructions related to this Since the message can be displayed, the workability of inspection is also improved.

[Embodiment] The present invention will be described below with reference to an embodiment shown in FIGS. 1 to 7.

FIG. 1 is an explanatory view showing the outline of a die casting machine.

In FIG. 1, reference numeral 1 is a base, and a plurality of tie bars 4 are arranged between a fixed platen 2 and a support member 3 installed on the base 1, and a movable platen is slidably mounted on the tie bar 4. 5 is inserted. A mold clamping cylinder (hydraulic cylinder) 6 is fixedly mounted on the support member 3, and a piston rod 6a thereof is connected to the movable platen 5 via a toggle link mechanism 7 and is movable by the forward and backward movement of the piston rod 6a. The platen 5 moves forward or backward with respect to the fixed platen 2.

A fixed mold 8 and a movable mold 9 are attached to the surfaces of the fixed platen 2 and the movable platen 5 that face each other. Further, the fixed platen 2 has a hot water supply sleeve body 10
The molten metal such as an aluminum alloy supplied from the hot water supply port 10a is supplied to the plunger rod 11a at the tip of the piston rod 11a of the injection cylinder (hydraulic cylinder) 11 installed on the base 1. Therefore, when the mold is clamped, it is injected into the mold.

An injection pressure sensor 12 is composed of, for example, an oil pressure measuring head attached to the injection cylinder 11, and an output from the injection pressure sensor 12 is supplied to an input conversion arithmetic unit 51 of an arithmetic processing unit 50 described later. It Although not shown, 13 is an injection stroke sensor, for example, the injection cylinder 11
And a pulse encoder (or potentiometer) that detects the amount of rotation of a pinion that meshes with a rack that moves back and forth integrally with the piston rod 11a, and the output from the injection stroke sensor 13 will also be described later. It is supplied to the input conversion arithmetic unit 51 of 50. A mold opening / closing stroke sensor 14 is composed of a pulse encoder, a potentiometer, etc. for detecting the stroke of the piston rod 6a of the mold clamping cylinder 6 (or the movable platen 5 etc.), and the output from the mold opening / closing stroke sensor 14 will also be described later. It is supplied to the input conversion arithmetic unit 51 of the arithmetic processing means 50. 15
Is an eject stroke sensor, which is attached to a known mechanism (not shown) for ejecting the cast product 16 attached to the movable mold 9 side when the mold is opened, and detects a relative stroke between the eject pin and the cast product. A pulse encoder, a potentiometer, and the like, and the output from the eject stroke sensor 15 is also described later in arithmetic processing means.
It is supplied to the input conversion arithmetic unit 51 of 50.

Reference numeral 20 denotes a hot water supply device for supplying the molten metal, which is disposed between the crucible filled with the molten metal obtained by melting an aluminum alloy or the like and the hot water supply port 10a. FIG. 2 shows a hot water supply device 20. The hot water supply device 20 is rotatably held by a first arm 22 rotatably held on a base 21 and a tip end portion of the first arm 22. The second arm 23 is provided with a ladle 24 which is rotatably held at the tip of the second arm 23.
The first arm 22 and the second arm 23 are interlocked with each other by a known interlocking mechanism, and the ladle 24 is adapted to be rotated independently of the arms 22 and 23. The arm 23 and the ladle 24 are each driven and controlled by an appropriate drive source such as a DC motor. Then, the molten metal pumped up from the crucible 25 by the ladle 24 by a predetermined amount is the hot water supply port 10a.
Is conveyed to the hot water supply port 10a at a predetermined timing. Reference numeral 26 is an arm stroke sensor, 27 is a ladle stroke sensor, and the outputs of the stroke sensors 26, 27 are supplied to an input conversion arithmetic unit 51 of arithmetic processing means 50 described later.

Reference numeral 30 denotes an ejector for ejecting the solidified cast product 16 out of the mold, which is the first between the fixed platen 2 and the movable platen 5.
As shown in the figure, when the mold is opened, the cast product 16 adhered to the movable mold 9 side is removed and the cast product 16 is placed on a belt conveyor (not shown). There is.

FIGS. 3 (a) and 3 (b) show the unloader 30, FIG. 3 (a) is a plan view, and FIG. 3 (b) is a side view. As shown in FIG. The base 31 includes an arm member 32 rotatably held on the base 31, and a finger member 33 attached to the tip of the arm member 32.

The arm member 32 is rotatable between an advancing position shown by a solid line in FIG. 3 (a) and a retracted position shown by a two-dot chain line. The arm member 32 takes the advancing position after opening the mold and closes the mold. Occasionally, the retreat does not interfere with the operation of the die casting machine itself.
It is supposed to be in position. The arm member 32, together with its holding member, is also slidable between the position shown by the solid line and the two-dot chain line in FIG. 3 (a) in parallel with the die casting machine axis. When the arm member 32 is in the above-mentioned advance position located in the mold opening space between the fixed mold 8 and the movable mold 9, the arm member 32 moves to the position shown in the two-dot chain line near the movable mold 9 and the movable position. It is configured to move between the mold 9 and a position shown by a solid line in the drawing.
Further, the finger member 33 is rotatably (rotatably) held by the arm member 32 as shown by an arrow in FIG. 3 (b), and the gripped portion of the cast product 16 (the plunge tip 11b described above). Clamping state (chucking state) in which the part pressed by the
And a non-clamping state (non-checking state). The arm member 32 and the finger member 33 described above are drive-controlled by an appropriate drive source such as an air cylinder.

34 is an arm rotation stroke sensor, 35 is an arm slide stroke sensor, 36 is a finger swing (rotation) detection sensor, 37 is a chuck operation detection sensor, and these sensors
The outputs of 37 to 37 are supplied to the input conversion arithmetic unit 51 of the arithmetic processing unit 50 described later.

The mechanism and operation mode of the unloader 30 can be variously modified, and more complicated operations may be performed as necessary. In this case, the required number of sensors (for example, limit switches) are added.

40 is a spray device installed on the fixed platen 2, which is opened after the mold is opened and the cast product 16 is taken out.
Air and a release agent are sprayed onto both the fixed mold 8 and the movable mold 9. Fig. 4 shows spray device 40
The spray device 40 includes a base 41 and a base 41.
A lifting cylinder (air cylinder) 42 mounted on a holding member 41, and an operating rod 42a of the lifting cylinder 42.
The nozzle group 43 and the like attached via a holder to the. The nozzle group 43 is moved up and down by an elevating cylinder 42, and the nozzle group 43 is lowered and inserted into the mold opened space after the casting product 16 is taken out of the mold by the take-out machine 30, and air spray is first performed. To clean the mold surface by blowing off burrs and the like remaining on the fixed mold 8 surface and the movable mold 9 surface, and then spraying a mold release agent on both mold 8 and 9 surfaces. After that, air is sprayed again to uniformly apply the release agent. Reference numeral 44 denotes a nozzle position detection sensor, and the output of the nozzle position detection sensor 44 is supplied to an input conversion arithmetic unit 51 of an arithmetic processing unit 50 described later.

It should be noted that the lifting cylinder 42 of the spray device 40 can be swung if necessary, and in this case, a swirl detection sensor is attached.

Reference numeral 50 denotes an arithmetic processing unit attached to the die casting machine, which includes the hot water supply device 20, the take-out device 30, and the spray device 40 as peripheral devices.
It is designed to control the entire die casting machine including. In the embodiment, the arithmetic processing means 50 mainly comprises an input conversion arithmetic device 51, a main controller 52, and a CRT controller 5
3 and the peripheral device control device 54, and the main control device 52, the CRT control device 53, etc. are each configured by a micro computer, each of which stores various I / O interfaces, main control programs, fixed data, etc. Stored ROM,
RAM for reading and writing various flags and fixed data,
It is equipped with a μCPU (micro central processor unit) that controls the overall control. Further, the main control unit 52 has a clock (timer) 61 that is backed up, a RAM, and the like, and is provided with a non-volatile calendar function, so that it is possible to recognize a preset periodic inspection date and the like. There is.

Reference numeral 55 is a key input device, which is arranged on the main panel board of the die casting machine, etc.
By operating a predetermined key switch (push button switch) of, the display mode of the display device 56 described later is selected,
The cursor on the display screen can be moved, or the casting conditions of the entire die casting machine can be variably set.

56 is a display device consisting of a color CRT display, which is arranged near the key input device 55 and has a regular inspection display mode screen described later, various operation status display mode screens other than this, various casting condition setting mode screens, etc. It is supposed to display. Reference numeral 57 denotes a printer, which prints out the calculation processing result of the calculation processing means 50 as necessary. 58 is a personal computer as an external arithmetic control device, which is connected to the arithmetic processing means 50 of each die casting machine as necessary,
It is designed to monitor multiple die casting machines at the same time and manage machine groups.

In the input conversion arithmetic unit 51 of the arithmetic processing means 50, each sensor group (12,13,14,15,26,27,34,35,36,37,44) of the encoder, the pressure measurement head, the limit switch, etc., is described. ) Etc., each sensor signal is sent to A /
It is converted into a digital signal by the D converter and taken into the main controller 52 at an appropriate timing via the data transfer section.
The data is sequentially updated and stored in a predetermined area of RAM. Main controller 52
Is, while referring to the signals from this sensor group and the preset casting conditions, based on a predetermined program, the hot water supply device 20, the take-out device 30, the driver circuit (not shown) of the spray device 40. It controls and drives and controls a DC motor, an electromagnetic actuator for controlling an air cylinder, and the like, and controls the hot water supply device 20, the take-out device 30, and the spray device 40. Also,
Similarly, the main controller 52 compares the signals from the sensor group with preset casting conditions, and based on a predetermined program, performs pressure adjustment and speed adjustment via the driver circuit 59 for the hydraulic system. The pressure speed adjusting valve 60 composed of a plurality of proportional solenoid valves having a function is driven and controlled, and thereby, the mold clamping cylinder 6 and the injection cylinder 11 are caused to perform a predetermined operation at a predetermined timing to perform injection and mold opening / closing.・
It is designed to run an eject.

In the above-mentioned configuration, when the main control device 52 recognizes that the preset regular inspection date has been reached by its own clock (timer), the main control device 52 does not care what display mode is selected. The CRT control device 53 is instructed to preferentially display the regular inspection display mode screen, and the CRT control device 53 displays on the display screen of the display device 56 in accordance with the display program, the display data code, and the like created in advance. , A graphic pattern, a character, etc. are displayed at a predetermined position in a predetermined color. In the embodiment, even if the periodic inspection display mode screen is displayed, it is possible to operate the die casting machine. However, when the periodic inspection display mode screen is displayed, the machine operation is forcibly stopped and the inspection end signal is sent. It is also possible to make the machine inoperable until an input is made, which further has the effect of prompting the operator to perform the inspection.

FIG. 5 is an explanatory diagram showing a regular inspection display mode screen displayed on the display screen 56a of the display device 56. In the figure, reference numerals 70, 71, 72, 73 and 74 are device graphic patterns respectively showing the outline shapes of the die casting machine body, the control panel portion, the hot water supply device 20, the take-out device 30, and the spray device 40. 70 to 74 are fixedly displayed at predetermined positions on the display screen 56a. In this embodiment, the graphic patterns 70 to 74 are displayed on the black background in an appropriate combination of yellow, red and green. 75 ... is a fixedly displayed frame, 76 ... is a fixedly displayed inspection item display character, and the frame 75 and the inspection item display character 76 are displayed, for example, in white near the related members of the graphic patterns 70 to 74. To be done.

On the upper left of the display screen 56a, the letters "inspection start" and "inspection end" that are not enclosed in a frame are displayed in white, and the start display 77 ( "Clear") and the end display 78 ("End") are displayed in white. In the initial screen state of the periodic inspection display mode, for example, the green display cursor 79 is located on the “clear” start display 77, and when the “ON” key of the key input device 55 is pushed in this state, the cursor 79 is displayed. ,, Automatically move to the uppermost character "filter" of the inspection item display character group 76 for the unloader 30,
A specific inspection instruction message 80 corresponding to the inspection item display character 76 "filter" is displayed, for example, in red on the upper side of the display screen 56a. In FIG. 5, the cursor 79 is located at the uppermost character "CRT" in the inspection panel display character group 76 related to the control panel.
The inspection instruction message 80 shows a corresponding display "The screen is distorted and has no shake, clean or replace the fan filter."

The above-mentioned inspection instruction message 80 shows the characters for each inspection item.
The content corresponding to each of the 76 is displayed, and it is omitted to list all of them because of the number of sheets, but for example, the cursor 79 is indicated by A in FIG. When it is in the position, the message "Whether the handle is rotated and locked properly. Oil is applied to the screw part. Zero correction of the memory." Is displayed.

In FIG. 5, the check mark 81 on the left side of each check item display character 76 is the checked index 81, and the cross mark is also the pre-check index 82. On the expected screen of the periodic inspection display mode, all the indicators are the pre-inspection indicators 82, and the operator is instructed by the inspection instruction message 80 of the inspection item display character 76 where the cursor 79 is currently located. When the "ON" key is pushed after performing the inspection of the contents, the pre-inspection index 82 of this inspection item display character 76 changes to the inspected index 81, and the cursor 79 moves to the next inspection item display character 76. The inspection instruction message 80 changes accordingly.

In this way, the operator sequentially inspects each part of the entire die-casting machine according to the instruction of the inspection item accompanying the movement of the cursor 79 and the specific instruction message that is sequentially rewritten corresponding thereto, and every time the inspection of one item is completed. Push the "ON" key to change the pre-inspection index 82 to the inspected index 81. Then, when the index of all the inspection item display characters 76 is changed to the inspected index 81, the cursor 79 displays the above-mentioned end display.
78 Moves to “End” and the operator turns “ON” in this state.
When the key is pushed, the main control unit 52 considers that the regular inspection is completed and erases the regular inspection display mode screen.

In this way, the main control device 52 recognizes that the regular inspection date has come and automatically displays the regular inspection display mode screen, so that the operator surely recognizes that the inspection is necessary,
Periodic inspection will be performed. Also check the cursor
79 The inspection item display characters 76 by moving and the inspection instruction message 80 can be sequentially performed in accordance with the specific contents, so that the inspection item leakage can be prevented and the inspection instruction contents can be surely grasped.

FIG. 6 is a flow chart showing an outline of the processing flow for the periodical inspection display executed by the main controller 52. In the figure, S1 is a step in which a built-in clock (timer) is compared with a predetermined inspection day interval to inquire whether it is a regular inspection day, and if YES, step S2
If NO, the process ends. In step S2, it is determined whether or not the inspection has been completed by the presence or absence of the completion instruction flag. If YES, the process ends, and if NO, the process proceeds to step S3. In step S3, the screen display of the above-mentioned regular inspection mode is executed, and the process proceeds to step S4. In step S4, it is judged whether or not the inspection end signal arrives, and if NO, the step is judged.
Returning to S3, if YES, the series of processing ends.

FIG. 7 is a flow chart showing an example of the processing for rewriting display of the above-mentioned inspection instruction message 80 executed by the main controller 52 and the CRT controller 53. In the figure, S11 determines whether or not the cursor No. has changed (whether or not the position of the cursor 79 has changed) by comparing the cursor No. currently held in a predetermined area with the current cursor position No. If YES at step S12, proceed to step S12,
If NO, jump to step S16. In Step S12,
A process of storing a new cursor No. is performed, and thereafter, the process proceeds to step S13, the previous inspection instruction message 80 is erased from the display screen 56a, and then the process proceeds to step S14. In step S14, the table holding the message contents corresponding to all the cursor numbers of the inspection item display characters 76 described above in a one-to-one correspondence is referred to, and the message contents corresponding to the newly stored cursor number are displayed. Heading, next step
Proceed to S15. In step 15, the contents of the new message searched in step S14 are displayed as the inspection instruction message 80 on the display screen 56a, and the process proceeds to step S16. In step S16, it is determined whether or not the inspection of all items is completed by appropriately checking the presence or absence of the flag. If NO, the process returns to step S11, and Y
If it is ES, a series of processing ends.

Although the present invention has been described above with reference to the illustrated embodiments, those skilled in the art can make various modifications without departing from the spirit of the present invention, and can arbitrarily change the graphic pattern and the display form of characters, It goes without saying that the processing flow can be changed as appropriate.

In addition, in the above-described embodiment, the regular inspection display mode screen is displayed only on the day of the regular inspection day. It is also possible to display a notice every day until the regular inspection date, such as "Y month Z day is the regular inspection date." By doing so, the operator can be prepared and the manufacturing schedule for the inspection Adjustment is also possible in advance easily.

[Effects of the Invention] As described above, according to the die casting machine of the present invention, the arithmetic processing means 50 (main control unit 52) recognizes the regular inspection date and automatically displays the regular inspection display mode screen with priority. , The operator can be made sure that the inspection is necessary, and the inspection can be prompted. Therefore, since it is possible to avoid the situation of forgetting the inspection date and neglecting the regular inspection as in the past, it is possible to prevent machine trouble and prolong the life of the machine. It has a remarkable effect.

[Brief description of drawings]

Each of the drawings relates to one embodiment of the present invention. FIG. 1 is an explanatory view showing an outline of a die casting machine control device, FIG. 2 is a front view of a hot water supply device, and FIG. 3 (a) is a plan view of a unloader. 3 (b) is a side view of the unloader, FIG. 4 is a front view of the spray device, FIG. 5 is an explanatory view showing a display screen in the regular inspection display screen mode, and FIG. 6 is a main controller. A flow chart showing the outline of the processing flow for the periodic inspection display to be executed,
FIG. 7 is a flow chart showing an example of a processing flow for rewriting and displaying the inspection instruction message. 1 ... Base, 2 ... Fixed platen, 3 ... Support member,
4 ... tie bar, 5 ... movable platen, 6 ... mold clamping cylinder, 6a ... piston rod, 7 ... toggle link mechanism, 8 ... fixed mold, 9 ... movable mold, 10 ... hot water supply sleeve body , 10a …… Hot water inlet, 11 …… Injection cylinder, 11a ……
Piston rod, 11b …… Plunger chip, 12 …… Injection pressure sensor, 13 …… Injection stroke sensor, 14 …… Mold opening / closing stroke sensor, 15 …… Eject stroke sensor, 20 …… Hot water supply device, 21 …… Base, 22 …… First arm, 23 …… Second arm, 24 …… Ladle, 25 …… Crucible,
26 …… Arm stroke sensor, 27 …… Ladle stroke sensor, 30 …… Unloader, 31 …… Base, 32 …… Arm member, 33 …… Finger member, 34 …… Arm rotation stroke sensor, 35 …… Arm slide stroke sensor, 36 ...
… Finger movement detection sensor, 37 …… Check movement detection sensor, 40 …… Spray device, 41 …… Base,
42 ... Elevating cylinder, 42a ... Operating rod, 43 ... Nozzle group, 44 ... Nozzle position detection sensor, 50 ... Calculation processing means, 51 ... Input conversion calculation device, 52 ... Main control device, 53 ...
CRT control device, 54 peripheral device control device, 55 key input device, 56 display device, 57 printer, 58 personal computer, 59 driver circuit, 60 pressure speed control valve,
61 …… Clock (timer), 70-74 …… Figure pattern,
75 …… Frame, 76 …… Inspection item display character, 77 …… Start display, 78 …… End display, 79 …… Cursor, 80 …… Inspection instruction message, 81 …… Inspected index, 82 …… Pre-inspection index .

Claims (6)

[Claims] 1. An arithmetic processing unit for controlling the entire die scat machine, and a display device comprising a CRT display for displaying various display modes by the output of the arithmetic processing unit.
A key input device is provided, and when the arithmetic processing means recognizes a regular inspection date by a built-in clock, the display device automatically displays a regular inspection display mode screen to prompt the operator for inspection. Die casting machine characterized by that. 2. The die casting machine according to claim 1, wherein the arithmetic processing means, upon recognizing a regular inspection date, stops the machine operation until an inspection end signal is input. 3. The die casting machine according to claim 1, wherein in the regular inspection display mode, an item requiring inspection is displayed on the display screen of the display device in characters. 4. The die casting machine body, the hot water supply device for supplying the molten metal, the take-out device for taking out the solidified product out of the mold, and the open state on the display screen of the display device according to claim 3. The outline shape figure of the peripheral device such as a spray device for spraying air and the release agent is displayed on the mold opening surface, and the above-mentioned items requiring inspection corresponding to the outline shape figure are displayed in characters. Die casting machine characterized by. 5. The die casting according to claim 3, wherein the message required for the inspection item is rewritten and displayed at a predetermined portion on the display screen by placing the cursor on the item requiring the inspection. Machine. 6. The die casting machine according to claim 1, wherein the arithmetic processing means gives advance notice of the inspection date from a predetermined number of days before the regular inspection date.