JPH02211968A - Die casting machine - Google Patents

Abstract

PURPOSE:To surely make an operator recognize the necessity of inspection by recognizing a routine inspection date through an arithmetic processing means and indicating a routine inspection display mode screen automatically on a display to promote the operator to carry out an inspection. CONSTITUTION:The arithmetic processing means 50 to control the whole die casting machine is installed on the die casting machine. A display 56 made up of a CRT display indicating different kinds of display modes by the output of the arithmetic processing means 50 and a key input device 55 are installed. A routine inspection date is recognized by a clock 61 built in the arithmetic processing means 50 and the routine inspection display mode screen is displayed on the display 56 to promote the inspection to the operator. When the routine inspection data is recognized by the arithmetic processing means, the machine stops its motion until a signal for the inspection finish is inputted. By this method, machine troubles are prevented and the life of the machine can be prolonged.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a die-casting machine equipped with a controller mainly composed of a microcomputer that controls the entire die-casting machine, a CRT display, etc.
The present invention relates to a die-casting machine that can implement a periodic inspection method that allows periodic inspections to be performed correctly on the scheduled inspection date.

[Conventional technology] Conventionally, die casting machines were inspected by an operator following an inspection schedule, etc. when the inspection date arrived.
A common method is to check the inspection items one by one while referring to manuals, etc.

Furthermore, the reality is that some users only perform inspections when a machine malfunction or abnormality occurs.

[Section M to be solved by the invention] As mentioned above, conventionally, the operator or the person in charge of work recognized the inspection date on a schedule, calendar, etc.
Although periodic inspections were to be performed, some users often ignored or forgot the periodic inspection dates, or set the required inspection date interval to a longer time. For this reason, problems have been pointed out, such as causing machine troubles and shortening the machine's lifespan. In addition, it is relatively troublesome to carry out inspections by flipping through instruction manuals, etc. while referring to inspection items and specific instructions, and if the instruction manuals, manuals, etc. are lost, inspection items may become unclear. There was also the problem that proper inspection could not be carried out.

The present invention was made in view of the above points, and its purpose is to improve the die casting machine itself.

To provide a die-casting machine capable of prompting an operator to carry out periodic inspection on an accurate scheduled inspection date.

[Means for Solving the Problems] In order to achieve the above-mentioned objects, the present invention provides arithmetic processing means for controlling the entire dice cutting machine.

A display device comprising a CRT display that displays various display modes based on the output of the arithmetic processing means.

In a die casting machine equipped with a key input device,
The arithmetic processing means is configured to automatically display a periodic inspection display mode screen on the display device to prompt the operator to perform an inspection, when the arithmetic processing means recognizes the periodic inspection date using a built-in clock.

[Function] As mentioned above, the die casting machine's own arithmetic control means recognizes the periodic inspection date using the built-in clock (timer), and automatically displays the periodic inspection display mode screen on the display device to notify the operator. Since it recognizes that the inspection date and time has arrived, it is possible to avoid situations such as forgetting the inspection date and missing the inspection period.In addition, for example, on the periodic inspection display mode screen, inspection items and specific instructions regarding them can be displayed. The ability to display messages also improves the work efficiency of one inspection.

[Example] The present invention will be explained below with reference to an example shown in FIGS. 1 to 7.

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

In FIG. 1, 1 is a base, and a plurality of tie bars 4 are disposed between a fixed platen 2 and a support member 3 installed on the base 1, and the tie bars 4 are slidably movable. A platen 5 is inserted.

The support member 3 includes a mold clamping cylinder (hydraulic cylinder) 6.
is fixedly installed, and its piston rod 6a is connected to the movable platen 5 via a toggle link mechanism 7, so that the movable platen 5 moves forward or backward relative to the fixed platen 2 by the forward and backward movement of the piston rod 6a. It has become.

A fixed mold 8 and a movable mold 9 are attached to opposing surfaces of the fixed platen 2 and movable platen 5, respectively. In addition, the fixed platen 2 has a hot water supply sleeve body I.
The molten metal such as aluminum alloy supplied from the hot water supply port 10a is transferred to the plunger tip (feeder part) at the tip of the piston rod lla of the injection cylinder (hydraulic cylinder) 11 installed on the base 1. 11b, it is injected into the mold when the mold is clamped.

12 is an injection pressure sensor, for example, the injection cylinder 11;
The output from the injection pressure sensor 12 is supplied to an input conversion calculation device 51 of a calculation processing means 50, which will be described later. 13 is the injection stroke sensor.

Although not shown, for example, a pulse encoder (
The output from the injection stroke sensor 13 is also supplied to an input conversion calculation device 51 of a calculation processing means 50, which will be described later. Reference numeral 14 denotes a mold opening/closing stroke sensor, which includes a pulse encoder, a potentiometer, etc. that detects the stroke of the piston roller a 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. The signal is supplied to the input conversion calculation device 51 of the calculation processing means 50. Reference numeral 15 denotes an eject (extrusion) 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 the relative stroke between the eject pin etc. and the cast product. The output from the eject stroke sensor 15 is also supplied to an input conversion calculation device 51 of a calculation processing means 50, which will be described later.

Reference numeral 20 denotes a hot water supply device for supplying molten metal, which is disposed between the crucible filled with molten metal made of melted aluminum alloy and the like and the hot water supply port 10a. FIG. 2 shows a hot water supply device 20, in which the hot water supply bag @20 is rotatably held on a base 21. The first arm 22
A second arm 23. is rotatably held at the tip of the second arm 23. A ladle 2 rotatably held at the tip of the second arm 23
4 etc. The first arm 22 and the second arm 23 are interlocked by a known interlocking mechanism, and the ladle 24 is configured to rotate separately from the arms 22 and 23. Arm 23 and
The ladle 24 is driven and controlled by an appropriate drive source such as a DC motor.

Then, a predetermined amount of molten metal is pumped up from the crucible 25 by the ladle 24, and is transported to the hot water supply port 10a, and is poured into the hot water supply port 10a at a predetermined timing. 26 is an arm stroke sensor, 27 is a ladle stroke sensor,
The outputs of the stroke sensors 26 and 27 are supplied to an input conversion calculation device 51 of a calculation processing means 50, which will be described later.

Reference numeral 30 denotes a take-out machine for taking out the solidified cast product 16 out of the mold, and is located between the fixed platen 2 and the movable platen 5 on the back side of the plane of the drawing in FIG.

Cast product 16 adhered to the movable mold 9 side when the mold is opened
is removed, and the cast product 16 is placed on, for example, a belt conveyor (not shown).

FIGS. 3(a) and 3(b) show the take-out machine 30.

FIG. 3(a) is a plan view, and FIG. 3(b) is a side view. The arm member 32 includes a member 32, a finger member 33 attached to the tip of the arm member 32, and the like.

The arm member 32 is rotatable between a forward position shown by a solid line in FIG. Sometimes it is in a retracted (retracted) position where it does not interfere with the operation of the die-casting machine itself. In addition, the arm member 32
The arm member 32 is slidable along with its holding member between the positions indicated by the solid line and the two-dot chain line in FIG. When the arm member 32 is in the above-mentioned forward position located in the mold opening space between the movable mold 9 and the movable mold 9, the arm member 32 is in the position shown by the chain double-dashed line and close to the movable mold 9.
It is arranged to move between the position indicated by the solid line and the position shown in the solid line. Further, the finger member 33 is shown in FIG. 3(b).
) is rotatably held by the arm member 32 as shown by the arrow, and the gripped part of the cast product 16 (
It is possible to selectively take a clamped state (chucking state) in which the part pressed by the plunger tip ILB (usually called a biscuit) is clamped, and a non-clamped state (non-chucking state).
The arm member 32 and the finger member 33 described above are driven and 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 rotation (rotation) detection sensor, and 37 is a chuck operation detection sensor. It is supplied to the input conversion calculation device 51.

Note that the mechanism and operation mode of the extractor 30 can be modified in various ways.
If necessary, more complicated operations may be performed, and in this case, the number of sensors (for example, limit switches) is increased as required.

40 is on the fixed platen 2! After the molds are opened and the cast product 16 is taken out, air and a mold release agent are sprayed onto both the fixed mold 8 and the movable mold 9 using twelve spray devices. FIG. 4 shows a spray device 40, which spray device fi! Reference numeral 40 denotes a base 4I, a lifting cylinder (air cylinder) 42 attached to the base 41 via a holding member, and a nozzle attached to the operating rod 42a of the lifting cylinder 42 via a holding member. It is equipped with group 43, etc. The above nozzle group 4
3 is moved up and down by an elevating cylinder 42, and a nozzle group 43 is inserted downward into the mold-opened space after the cast product 16 has been taken out of the mold by the take-out machine 30, and first the fixed mold 8 is removed by air spraying. The mold surface is cleaned by blowing away any remaining flash or glue on the surface and the movable mold 9 surface, and then a mold release agent is sprayed on both mold surfaces 8 and 9, and after that, Air spraying is performed again to uniformly coat the mold release agent. 44 is a nozzle position detection sensor;
The output is supplied to an input conversion calculation device 51 of the calculation processing means 50, which will be described later.6 The elevating cylinder 42 of the spray device 40 can be turned as required, and in this case, a rotation detection sensor is attached.

50 is a calculation processing means attached to the die-casting machine;
The water heater 20 is a peripheral device. It is in charge of controlling the entire die-casting machine including the take-out machine 30 and the spray device 40. In this embodiment, the arithmetic processing means 5
0 is mainly an input conversion calculation unit! ! 51 and a main controller 52
, a CRT control device 53 and a peripheral device control device 54.The main control device 52, CRT control device 53, etc. are each composed of a microcomputer, and each has various I10 interfaces, main control programs and fixed It is equipped with a ROM that stores data, a RAM that reads and writes various flags and fixed data, and a μCPU (micro central processor unit) that controls the entire system. In addition, the main control bag M52 has a battery-backed clock (timer) 61, RAM, etc., and is equipped with a non-volatile calendar function, so that it can recognize preset periodic inspection dates, etc. .

Reference numeral 55 denotes a key input device, which is disposed on the main panel board of the die-casting machine, etc., and when the operator operates a predetermined key switch (push button switch) of the key input device 55, the display device ! ! It is possible to select 56 display modes, move the cursor on the display screen, or variably set the casting conditions for the entire die casting machine.

56 is a display device consisting of a color CRT display;
The key input bag f! ! 55, and is adapted to display a periodic inspection display mode screen to be described later, various other operating status display mode screens, various casting condition setting mode screens, etc.

Reference numeral 57 denotes a printer, which is designed to print out the arithmetic processing results of the arithmetic processing means 50 as needed. 5
8 is a personal computer which is an external arithmetic and control device.

It is connected to the arithmetic processing means 50 of each die-casting machine as necessary, and simultaneously monitors a plurality of die-casting machines and performs machine group management.

The input conversion calculation device 51 of the calculation processing means 50 includes sensor groups (12, 13°, 14.15, 26, 2) such as the encoder, pressure measurement head, and limit switch.
7, 34, 35, 36, 37, 44), etc. are sent out, and each sensor signal is converted into a digital signal by an A/D converter as necessary, and then sent to the The data is taken into the main controller 52 and sequentially updated and stored in a predetermined area of the RAM. The main control device 52 compares and refers to the signals from this sensor group and preset casting conditions, and controls the water heater 20 described above based on a predetermined program. The unillustrated driver circuits of the takeout machine 30 and the spray device 40 are controlled, and the DC motor, the electromagnetic actuator for controlling the air cylinder, etc. are driven and controlled, and the water heater 20 and the takeout machine 30 are controlled. Control the spray device 40.

Similarly, the main control bag @52 compares and refers to signals from the sensor group and preset casting conditions, and adjusts the pressure via the driver circuit 59 for the hydraulic system based on a predetermined program. It also drives and controls a pressure speed adjustment valve 60 consisting of a plurality of proportional solenoid valves having a speed adjustment function, thereby causing the mold clamping cylinder 6, injection cylinder 11, etc. to perform a predetermined operation at a predetermined timing, thereby adjusting the injection wave. There is.

In the above configuration, when the main control device 152 recognizes that the preset periodic inspection date has arrived based on its own clock (timer), the main control device 52 performs the inspection regardless of what display mode is selected. , instructs the CRT control device 53 to display the periodic inspection display mode screen with priority.

The CRT control device 53 displays graphic patterns, characters, etc. in a predetermined position and in a predetermined color on the display screen of one display device 56 according to a display program, display data code, etc. created in advance. In this embodiment, the die casting machine is allowed to operate even if the periodic inspection display mode screen is displayed, but when the periodic inspection display mode screen is displayed, the machine operation is forcibly stopped and the inspection end signal is issued. It is also possible to disable the machine until an input is made, which has the effect of prompting the operator to carry out inspections.

FIG. 5 shows the display device! 56 is an explanatory diagram showing a periodic inspection display mode screen displayed on the display screen 56a of No. 56. FIG. In the same figure, 70, 71, 72, 73.
0, device graphic patterns each showing the approximate shape of the spray device 1t40, these device graphic patterns 70 to 74
is displayed fixedly at a predetermined position on the display screen 56a.

In this embodiment, one figure pattern 70~
74 are displayed in appropriate combinations of yellow, red, green, etc. 75... are fixedly displayed frames, 76... are fixedly displayed inspection item display characters, and the above-mentioned frame 75 and inspection item display characters 76 are placed near the related members of one graphic pattern 70 to 74. For example, it is displayed in white.

At the top left of the display screen 56a, the words [Inspection start J, r Inspection end] are displayed in white, which are not surrounded by a frame, and to the right of this, a start display 77 ( "Clear") and end display 78 ("
"End") is displayed in white. In the initial screen state of the periodic inspection display mode, for example, the green cursor 79 is located on the start display 77 "Clear", and in this state, the key input field! ! When the "ON" key of 55 is pressed, the cursor 79 automatically moves to the topmost character "filter" of the group of inspection item display characters 76 for the extractor 3°, and this inspection item display character 76 is pressed.
Specific inspection instruction message 8 corresponding to “filter”
0 is displayed in red, for example, on the upper side of the display screen 56a.

In addition, in FIG. 5, the cursor 79 points to the top character rcR of the group of control panel-related inspection item display characters 76.
The 1 inspection instruction message 80 located at the TJ shows the corresponding display ``Is there any distortion or vibration on the screen?Clean or replace the fan filter.''

The above-mentioned inspection instruction message 80 is displayed with different contents corresponding to each inspection item display character 76, and although it is omitted to list them all due to space limitations, for example, .

When the cursor 79 is at the position indicated by A in FIG.
``Is the handle rotation and lock normal?Apply oil to the threaded part.
Memory zero correction. ' is displayed.

In FIG. 5, the mark 0 on the left side of each inspection item display character 76 is the inspected index 81, and the mark 76 is similarly indicated as the pre-inspection index 82.

On the initial screen of the periodic inspection display mode, all indicators are 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. After inspecting the contents, press the "ON'" key, the pre-inspection indicator 82 of the inspection item display character 76 changes to the inspected indicator 81, and the cursor 79 moves to the next inspection item display character 76. The inspection instruction message 80 also changes accordingly.

In this way, the operator sequentially inspects each part of the entire die-casting machine in accordance with the instruction of inspection items as the cursor 79 moves and the specific instruction messages that are sequentially rewritten accordingly, and each time an inspection of one item is completed. Press the 'ON' key to change the pre-inspection indicator 82 to the inspected indicator 81, and when the indicator of all inspection item display characters 76 changes to the inspected indicator 'Il!A81, the cursor 79
moves to the above-mentioned end display 78 "END", and when the operator presses the 710 N N key in this state, the main controller 52 assumes that the periodic inspection has been completed and erases the periodic inspection display mode screen. It looks like this.

In this way, the main controller 52 recognizes that the periodic inspection date has arrived and automatically displays the periodic inspection display mode screen, so the operator can reliably recognize that an inspection is necessary and carry out the periodic inspection. I will do it. Further, the inspection can be performed sequentially according to the instructions of the inspection item display characters 76 by moving the cursor 79 and the specific contents of the inspection instruction message 80, so that omission of inspection items can be prevented and the contents of the inspection instruction can be grasped with certainty.

FIG. 6 is a flowchart showing an outline of the processing flow for displaying periodic inspections executed by the main controller 52. As shown in FIG. In the same figure, Sl is a step that compares a built-in clock (timer) with a predetermined inspection date interval and asks whether it is a regular inspection date. If YES, proceed to step S2; if NO, proceed to step S2. ends. Step S2
Then, it is determined whether one inspection has already been completed or not based on 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 above-mentioned periodic inspection mode screen display is executed. , proceed to step S4,
In step S4, it is determined whether a one-inspection end signal has arrived, and if no, the process returns to step S3, and if YES, the series of processes ends.

FIG. 7 shows the main controller 52 and the CRT controller M5.
3 is a flowchart showing an example of a process for rewriting and displaying the above-described inspection instruction message 80, which is executed in step 3. FIG. In the figure, S11 determines whether the cursor number has changed (or the position of the cursor 79 has changed) by comparing the cursor number currently held in a predetermined area with the current cursor position number. If YES in the step, the process advances to step S12, and if NO, the process jumps to step S16. In step S12, a new cursor No.
After that, the process proceeds to step S13, where the previous inspection instruction message 80 is erased from the display screen 56a, and then the process proceeds to step S14.In step S14, each of the inspection items described above is Referring to a table that holds message contents corresponding one-to-one to all the cursor numbers of the display characters 76, the message contents corresponding to the newly stored cursor No. are found, and the process proceeds to the next step S15. In step 15, step S1
The new message contents searched in step 4 are displayed in one screen 56a.
The inspection instruction message 80 is displayed on the top of the screen, and the process proceeds to step S16.In step 816, whether or not inspection of all items has been completed is determined based on the presence or absence of flags as appropriate.
If so, return to step Sll, and if YES, the series of processes ends.

Although the present invention has been described above with reference to the illustrated embodiment, those skilled in the art will be able to make various modifications without departing from the spirit of the present invention, and can arbitrarily change graphic patterns and character display formats, as well as process flow. It goes without saying that this can also be changed as appropriate.

In addition, in the above-mentioned embodiment, the periodic inspection display mode screen is displayed only on the day of the periodic inspection. It is also possible to display a notice every day until the scheduled inspection date, such as "The following July 2nd is the scheduled inspection date." By doing this, the operator can prepare mentally and also check the manufacturing schedule for the first inspection. Adjustments can also be easily made in advance.

[Effects of the Invention] As described above, according to the die casting machine of the present invention, the arithmetic processing means 50 (main controller 52) recognizes the periodic inspection date and automatically prioritizes the periodic inspection display mode screen. This can be done by ensuring that the operator is aware of the need for inspection and encouraging them to do so. Therefore, it is possible to avoid as much as possible the situation where regular inspections are neglected due to forgetting the inspection date, which is the case in the past, so machine troubles can be prevented and the life of the machine can be extended. It has a remarkable effect.

[Brief explanation of the drawing]

The drawings all relate to one embodiment of the present invention, and FIG. 1 is an explanatory diagram showing an outline of a die-casting machine control device. Figure 2 is a front view of the water heater, Figure 3 (a) is a plan view of the take-out machine, Figure 3 (b) is a side view of the take-out machine, Figure 4 is a front view of the spray equipment, and Figure 5 is a An explanatory diagram showing the display screen in periodic inspection display screen mode, Fig. 6 is a flowchart showing an outline of the processing flow for periodic inspection display executed by the main controller, and Fig. 7 is a rewriting display of the inspection instruction message. FIG. 2 is a flowchart diagram showing an example of a processing flow for. ■・・・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...Identification mold , 9...
...Movable mold, 10...Hot water supply sleeve body, 10
a... Hot water supply port, 11... Injection cylinder, lla... Piston rod, llb...
... Plunger chip, 12 ... Injection pressure sensor, 13 ... Injection stroke sensor, 14 ...
... Mold opening/closing stroke sensor, 15 ... Eject stroke sensor, 20 ... Water heater, 21 ... Base, 22 ... First arm , 23... Second arm, 24... Ladle, 25... Crucible, 26... Arm stroke sensor, 27... Ladle stroke Sensor, 30... Takeout machine, 31... Base, 32... Arm member, 33... Finger member, 34... Arm Rotation stroke sensor, 35...Arm slide stroke sensor, 36...Finger rotation (rotation) motion detection sensor, 37...Chuck motion detection sensor, 40
...Spray device, 41 ... Base, 4
2... Lifting cylinder, 42a... Operating rod, 43... Nozzle group, 44...
Nozzle position detection sensor, 50... Arithmetic processing means, 51... Input conversion computing 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 regulating valve, 61... Clock (timer ),
70-74...Figure pattern, 75...
・Frame, 76... Inspection item display characters, 77...
...Start display, 78...End display, 7
9...Cursor, 80...Inspection instruction message, 81...Inspected indicator, 82...
...Pre-inspection indicators. Figure 2 Figure 3 Figure 3 (b) Figure 4 District 6 7th cause

Claims (6)

[Claims] (1) Comprising arithmetic processing means for controlling the entire dice cutting machine, a display device consisting of a CRT display for displaying various display modes based on the output of the arithmetic processing means, and a key input device, the arithmetic processing means The die-casting machine is characterized in that, when a periodic inspection date is recognized by a built-in clock, the means automatically displays a periodic inspection display mode screen on the display device to prompt an operator to perform an inspection. (2) A 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 periodic inspection display mode, items requiring inspection are displayed in text on the display screen of the display device. (4) In claim 3, the display screen of the display device shows the main body of the die-casting machine, a water heater for supplying molten metal, a take-out machine for taking out the solidified product out of the mold, and a released mold. A schematic shape of a peripheral device such as a spray device for spraying air and a mold release agent on the open surface is displayed, and the items requiring inspection corresponding to the above-mentioned items are displayed in text near the schematic shape. die casting machine. (5) The die-casting machine according to claim 3, wherein when a cursor is placed on an item requiring inspection, a message necessary for the inspection item is rewritten and displayed in a predetermined area on the display screen. (6) A die-casting machine according to claim 1, wherein the arithmetic processing means gives advance notice of the inspection date a predetermined number of days before the regular inspection date.