JPS6092065A - Tuning system of casting machine and automatic pouring device - Google Patents

Abstract

PURPOSE:To enable tuning of a casting machine and an automatic pouring device by detecting the time required for one cycle of the casting machine and the time required for one cycle except the standby time of the automatic pouring device and determining the difference therebetween as standby time. CONSTITUTION:The interval of the signal outputted from a casting machine 1 to an automatic pouring device 32 is measured and the time required for one cycle of the machine 1 is detected. The time required for one cycle except the standby time of the device 32 is also detected. The difference between the above-mentioned two time is set as the standby time of the device 32. The machine 1 and the device 32 which poures automatically a molten metal to said machine 1 by the various commands from said machine are tuned.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a synchronization system for a casting machine, for example of aluminum, and an automatic water heater.

Conventionally, automatic hot water supply devices for casting machines need to be synchronized with the cycle of the casting machine, for example by adjusting the time the ladle is in the furnace, the running speed of the ladle, etc. A timer is provided to stop the process for a certain period of time, and the temporary stop time is adjusted using this timer.

However, these adjustments require readjustment each time the target mold changes, making maintenance work cumbersome] -1 As a result, it is extremely difficult to make fine adjustments during readjustment, which affects the water temperature during pouring. There was a drawback.

Here, an object of the present invention is to provide a synchronization system 1 for a casting machine and an L1 dynamic hot water supply device that does not require maintenance work even if the cycle time of the casting machine changes and has little variation in hot water temperature during pouring. It is about providing.

Therefore, in the unreleased 1, the time required for one cycle of the casting machine is detected in the synchronization system between the casting machine and the automatic water supply device that automatically supplies molten metal to the casting machine based on various command signals from the casting machine. At the same time, the above objective is achieved by detecting the time required for one cycle excluding the standby time of the automatic water heater, and setting the difference between these times as the standby time of the automatic water heater.

In short, the time required for one cycle of the casting machine and the automatic &
'8If the difference between the time required for 1 cycle excluding the standby time of the hot water system is taken as the standby time of the automatic hot water system, the time for both cycles will be the same, so this is an attempt to synchronize both. It is.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows the overall mechanism of this embodiment.

In the figure, between the casting machine 1 and the melting furnace 2, there is an automatic water supply device 3 that pours molten metal supplied from the melting furnace 2 into the casting machine 1.
Two hot water supply mechanisms 3 are provided.

The hot water supply mechanism 3 includes a base 11 provided between the casting machine 1 and the melting furnace 2, and a housing 16 is attached to the upper part of the base 11 via a support 15. The housing 16 rotatably supports a rotation @ 18 rotated by a ladle posture control motor 17 at its upper part, and a rotary shaft 20 rotated by a ladle travel motor 19 at its middle part.
A link mechanism 21 is provided between both rotating shafts 18 and 19.

The link mechanism 21 includes first and second arms 22 and 23, each of which has one end rotatably supported by the rotating shaft 18.
a third arm 24 having one end rotatably connected to the other end of the first arm 22; one end rotatably connected to the other end of the second arm 23; A fourth arm 25 is rotatably connected to one end of the third arm 24, and one end is fixed to the rotating shaft 2o and the other end is rotatable to one end of the fourth arm 25. When the fifth arm 26 swings due to the drive of the ladle travel motor 19, the other end of the third arm 24 passes through the trajectory shown by the chain line in the figure. It is designed to be displaced. Further, the third arm 24 is provided with a hot water level detection sensor 27 having, for example, a pair of electrodes arranged in parallel on its negative side, and is connected to the rotation shaft 18 at one end via an interlocking mechanism (not shown). Several ladle 29 are installed through a support shaft 28 which is rotated by the rotation shaft 18.

FIG. 2 shows a circuit configuration for synchronizing the casting machine 1 and the automatic water heater 32 with each other. In the figure, a hot water supply controller 33 that controls the hot water supply mechanism 3 receives a forward command signal FC from a casting machine controller 31 of the casting machine I.
5 and pouring command signal PC5, the hot water supply mechanism 3 is operated according to the process shown in FIG. tjS3, and an injection command signal IC5 is output to the casting machine controller 31 during the process.

That is, when the ladle 29 comes to WP1 to the extent that the scene of the melting furnace 2 is detected by the melt level detection sensor 27, the ladle travel motor 19 is stopped, and then the ladle position control motor 7 is driven to move the ladle 29 to the WP1. 29 is tilted at a predetermined angle, and a predetermined amount of molten metal is supplied into the ladle 29. Thereafter, the link mechanism 21 is operated to raise the ladle 29 from the melting surface of the melting furnace 2 in that position, and the raised position P
After draining the hot water for a certain period of time in Step 2, the posture is controlled to be horizontal and the robot is moved forward to the standby position P3. At this standby position P-1, the ladle 29 is advanced again to the pouring position P4 on the condition that the forward command signal FC3 is issued from the casting machine controller 31 within a predetermined time. On the condition that the hot water command signal PCS is issued, the ladle 29 is turned 90 degrees in both directions around the spindle 28, and the molten metal in the ladle 29 is poured into the casting machine l. . After pouring the metal, the ladle 29 is returned to the horizontal state, and an injection command signal IC5 is output to the casting machine controller 31 to retreat to the standby position IF P a.

At this standby value P3, after waiting for the time set by the timer, after that time-up, it is retreated and returned to the position P1 where the melt level of the melting furnace 2 is detected by the melt level detection sensor 27. This is called one cycle. have them do the action.

In addition, there are three counters inside the hot water controller.
Normally, the advance command signal FC5 and the pouring command signal PC3 from the casting machine 1 are output under fixed conditions of the casting machine 1, so the automatic water heater 3
2 and injection command signal ■If C5 is operating stably, it should be output at regular intervals.1 In this embodiment,
In the hot water supply controller 33, the counter 34 measures the interval (T1) between the forward command signal FC5 or the pouring command signal PC5 outputted from the PI machine, and the timer in FIG. The time required for one cycle of the automatic hot water supply system R32 (T2), excluding the type operation time, until it stops again at the standby position, is measured by the counter 35, and the difference in time (TI-72) is calculated using the counter 35. The standby time of the automatic hot water supply device 32 is updated in the counter 36 when the ladle 29 moves back and stops waiting, and the automatic hot water supply device 32 is kept on standby by the data in the counter 36.

As a result, the time required for one cycle of the M-making machine 1 and the time required for one cycle of the hot water supply device become the same, so that both can be synchronized.

Therefore, in the hot water supply controller 33, the counter 34 measures the interval (TI) of the advance command signal FC3 or the pouring command signal PC5, which is also output from the casting machine controller 31. The time from when the machine counts up and starts moving backward until it stops at the standby position again, that is, the time required for one cycle of the automatic water heater 32 excluding the timer operating time (T2)
is measured by the counter 35, and the time difference (T + - T
2) is the standby time of the automatic hot water supply device 32.
Since this is set in the counter 36 when the machine is stopped for backup, even if the cycle time of the casting machine I changes, the time required for one cycle of casting Ial is always the same as the time required for one cycle of the automatic water heater 32. Therefore, both can be synchronized. Therefore, casting machine 1
Even if the cycle time changes, there is no need for maintenance work, and there is little variation in water temperature when pouring.
The life of the ladle 29 can be extended.

In the example described in "-", on the hot water supply controller 33 side, the interval (TI) between the advance command signal FC5 or the pouring command signals PC and S issued from the casting machine controller 31 of the casting machine I is measured, and the casting Although the time required for one cycle of all is detected, for example, the interval (T1) between the command signals FC5 and PC3 may be measured by the casting machine controller 3, and the result may be transmitted to the hot water supply controller 33.

According to the present invention, even if the cycle time of the casting machine changes, there is no need for maintenance work, and a synchronization system between the casting machine and automatic hot water supply device that reduces the variation in the temperature of hot water during pouring is provided. can be provided.

[Brief explanation of drawings]

The figures show one embodiment of the present invention. Figure wS1 is a front view of the hot water supply mechanism, Figure 2 is a block diagram of a circuit for synchronizing the casting machine and automatic hot water supply system, and Figure 3 is a flowchart of the hot water supply mechanism. be. ■...Casting machine, 32...Automatic water heater. Agent f "Buried soil Kinoshita Actual Pressure (and 1 other person) Figure 2, 132 Figure 3 Procedural Amendment Document - 4-ξf February 1980 S1" / Commissioner of the Japan Patent Office Kazuo Wakasugi 1, Display of the case 1981 Patent Application No. 201233 2, Name of the invention Synchronization system between casting machine and automatic lifting device 3, Person making the amendment Relationship with the case Patent applicant Ika Address: Ginza, Chuo-ku, Tokyo 104 2411 4-chome Name (345) Toshiba Machine Co., Ltd. Representative Kazuo Iimura 4, Agent address 120-19 Toyo Hill 2F, Yorigi 2r, Shibuya-ku, Tokyo 151 Phone (03) 320-14216
, Number of inventions increased by amendment None 7, Subject of amendment

Claims (1)

[Claims] (1) In a synchronization system between a casting machine and an automatic water supply device that automatically supplies molten metal to the casting machine based on various command signals from the casting machine, the time required for one cycle of the M-making machine is detected. At the same time, the time required for one cycle excluding the standby time of the automatic water heater is detected, and the difference in time is set as the standby time of the automatic water heater. system. (2. A casting machine according to claim 1, characterized in that the time required for one cycle of the casting machine is detected by measuring the interval between signals output from the casting machine to an automatic hot water supply device. A synchronization system with an automatic hot water supply device. (3) According to claim 1 or 2, when the automatic hot water supply device is stopped on standby, the difference in the internal time is updated as the standby time of the automatic hot water supply device. A synchronization system between a casting machine and an automatic water heater.