JPS586760A - Confirming circuit for delivery and receiving of object to be conveyed in conveyor - Google Patents

Abstract

PURPOSE:To detect and confirm deliverying and receiving automatically by deciding the delivery and reception at the point of the time when the respective running speeds of the 1st and 2nd motors are equal and the load current of the 2nd motor is larger than the current of the 1st motor. CONSTITUTION:When a dummy bar 2 is conveyed, the running speed of a motor 12 is higher than that of a motor 11, and the speed of a chain 16 is higher than the moving speed of the bar 2. The bar 2 is conveyed at a higher speed by the pawls 17a of the chain 16. If the bar 2 is delivered and received in such a way, the load current of the magnitude required for conveying the bar 2 flows in the motor 12, and the speed of the motor 12 drops. The load of the motor 11 decreases and its speed increases. The speeds of the chain 16 and containing pinch rolls 9, 9 are made uniform so that the running speed of the motor 11 and the running speed of the motor 12 are made equal. Therefore, comparators both emit ''1'' signals, and the confirmation signal for the delivery and reception is emitted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for transporting an object to be transported from a first transporting device to
This is related to a circuit to confirm that the dummy bar has been transferred to the charging car at the 4IK continuous casting facility by the storage vinyl chute. Suitable for use when checking etc.
The liquid receiving device K is connected to the liquid receiving path IIa of the conveyed object.

Vertical I! The connected II/% second conveying device is
The conveyance device, in which the objects conveyed by the E/ conveyance device are subsequently conveyed by the Miko conveyance device, is loaded onto a dummy part T charging car at a continuous casting facility installed at a steel mill, etc., for example. The a 11' figure used in cases etc. and the * figure show an outline of the continuous casting equipment and the above-mentioned conveying device in this continuous casting equipment,
It's a haiku mask and it's a % filling/@, and it's first cast! I! The damper 2 is loaded so as to close the lower part of the damper 1.
When the molten metal is injected into the mold IK and casting begins, pinch rolls 3, 3 . ~5.5 along the casting drawing line 6 in the direction of the arrow 7, and after being separated from the casting drawing line 6 in the direction of the arrow 8 at point A, it is moved in the direction of the charging car 10 by the storage pinch rolls 9.9. After being transported, it is placed in a state as shown in FIG. Figure 113 is an enlarged side view showing the relationship between the dummy bar 2 shown in this fKJ diagram and the charging car 107 that hoists up the letter. The storing pinch roll 9.9, which is a conveyance device, is pressed against the damper bar 2 by a drive device (not shown) and is rotated by a motor 11 (first electric motor) K.

The dummy par 2 is transported upward as shown in the diagram. The conveyor belt mounted on the charging car 10 is carried by a chain 16 that is driven in the direction of arrow 15 by a sprocket 13 and a guide sprocket 14 driven by a motor 12 (second IF electric motor). This chain 16K)lt! L-claws 17a and 17b that act only in the running direction of the chain 16 are attached. Now, when the dummy par 2 is conveyed by the pinch rolls 9, 9 to the state Im shown in FIG. , is hoisted up onto the charging car 10 by the chain 16 into a state as shown by the chain 12' (7).

By the way, in the above-mentioned theory of the cascade-connected conveyance system WIK consisting of the storage pinch roll 9.9 and the chain 16 on the charging car 10, when the dummy par 2f storage pinch roll 9.91116h and the charging car 10mK are delivered. , conventionally, the operator has to adjust the conveyance shape m of the dungeon bar 2.
And supervising the extra-travel II pipe of the chain 16, the motor 411
1-111 that the transfer was carried out while delicately adjusting each rotational speed 1 of %12, and that the transfer of the dungeon bar was carried out reliably with the operator's eyes! I was in L. For this reason, in the past, there was a problem that manual labor was always required to transfer the dungeons and it took a long time to transfer the dungeons.

This invention was made in the light of these circumstances,
The purpose of this is to ensure that the transported object, which has been transported by the first transport device, has been reliably transferred to the transport device @J during the transport and mounting of the first transport device to the cascade-connected stations.
It is an object of the present invention to provide a circuit for confirming delivery of a conveyed object in a conveyance device that can automatically detect and confirm without manual intervention, thereby solving the various problems mentioned above.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of this invention will be explained in detail with reference to the drawings of an example tube.

Figure Ha shows the storage pinch roll 9.9 (transfer device of ll[/) and the chain 16 of the charging car 10 (transfer device fI of
It is a block diagram showing the configuration of the -(E embodiment) when applied to the smart sending device fl consisting of I). In this figure Kb-, 18
is the DC motor 11 for driving the storage pinch roll 9%9 (
Rotational speed at no load to IE/ motor) 71 N to
19 is the chain 1 speed setting device for commanding the
The rotational speed fN when no load is applied to the driving DC motor 12 (motor of Army 2) of No. 6. ? It is a second speed setter for issuing commands, and the setting output of the power setting device 49 is the same as the speed setting device 3.
．． We will discuss the span signal as it is supplied with. 2
0 is an IE/ drooping characteristic setting device % 21 for setting the epalm/ drooping characteristic so that the rotational speed fN of the motor 11 is reduced in accordance with the increase in the load electric current fiIs of the motor 11.
is a military drooping characteristic setting device for setting the first drooping characteristic so that the rotational speed tN of the motor 12 is decreased in accordance with the amount of increase in the load electric current #I of the motor 12. Further, 22 is a tacho generator for detecting the rotation speed fNs of the motor 11, and 23 is a rotation speed I of the motor 12.
This is an IEJ tough generator for detecting F N m. 24 is an addition point that subtracts the output N of the speed change setting device 18, the output of the drooping characteristic setting device 20, and the output N1 of the tough generator 22, and supplies the subtraction result to the amplifier 25; This is an addition point that subtracts the output of the droop characteristic setting device 21 and the output N of the tachogenerator 23 from the quality N, o of the variable setting device 190, and supplies the subtraction result to the amplifier 27. Also, 28% 29 is motor 11.12
The motor drive circuit 28 is supplied with power for driving the motor via a terminal 30, and is also supplied with a rotation control signal from the amplifier 25.
Further, the motor drive circuit 29 is supplied with motor drive power through a terminal 31 and is also supplied with a rotation control signal from the amplifier 27 . 32.33 is motor 11% 12
The output of the current detector 32 is a current detector that detects the load currents I, , I, respectively flowing in the output of the current detector 32! , is droop characteristic setter 2
0 hespan signal and the first comparator 3
4 as a comparison input signal of IIE/, and the output of the electric sweat detector 33! , are supplied to the droop characteristic setter 21 as input signals, and are also supplied to the comparator 34 as a comparison input signal of Makiko. This comparator 34 receives the second comparison input signal II! / is greater than the comparison input signal, i.e. 1. >I, then %1g of the value logic signal
configured to output a signal. t35 is a comparator that compares each output N*-N* of the tacho generators 22 and 23, and this comparator 35 is configured to output a 11' signal when N=N. There is. Further, 36 is an AND circuit that takes the output i of the comparator 34. This is a delivery confirmation signal generation circuit that generates a delivery confirmation signal indicating that the item has been delivered. 38 is the motor 1 when the transfer confirmation signal is generated.
39 is a stop command circuit which generates a command signal to command the stop of 4 and also to release the storage vinyl roll 9.9 from the pressed state against the dummy bar 2;
M, when the motor 11 is stopped and the storage pin cow roll 9.9 is released from the stop command circuit 38, the motor 12
This is a high-speed hoisting command circuit for rotating the dummy par 2 at high speed and instructing it to be hoisted onto the charging car lO in 8 different ways. In the above sections, the section 40 surrounded by am indicates the rotational speed control circuit for motors ii and tz.

Next, the operation of this embodiment with the above configuration will be described in 11j.
Load current-rotational speed f4fI of motor 11%12 shown in the figure
Explain with reference to gender. In this case, for convenience, %
Tanabata 1141! It is assumed that each no-load current is zero, and each rated load current 11n, 11n of the motor 11%12 is equal. Also, here, each rotational speed change N,,N when the motors 11 and 12 are under no load.

are set to respective predetermined values Nl@-Nto (Neo >NIO
) is set to i. The load current I of the motor 11 is changed from the no-load current to the rated current f1. For example, as shown in the concentrated line M in FIG. In addition, the load 1 [
+11. Suppose that a drooping characteristic is given such that when the rotation speed t'Nt decreases by ΔN when the current is increased from the no-load current to the rated current Inn, for example, the actual @Ml in Fig. 1 is given. . This case can be expressed as

And now, dummy par 2 is in storage bin 4CI-le 9%9
The charging car is transported in 10 directions by
Also, if the chain 16 is running idle, the motor 1
1 includes the large amount required to carry out the entire conveyance of the construction bar 2.
! A load current Ill flows through the motor 12, so that the motor 11 rotates at a rotational speed fNss, while a small load current Ill, which is necessary to cause the chain 16 to run idle, flows through the motor 12, so the same The motor 12 almost always fakes the rotational speed fNn. And Da 2-Par 2 is the third
When the motor 12 is transported to the state W shown in the figure, the rotational speed RNI of the motor 12 is greater than the rotational stray current N1m of the motor 11, and therefore the chain 160 traveling speed is the moving speed fJ of the dummy bar 2. ζ-bar 2 is chain 16
The claw 17m increases the speed v=1 so that the conveyance is continued. In the case where Damer 7-20 was searched in this way.

The motor 12 requires a large load current of K to transport (lift up) the dumb bar 2! □ flows, and therefore, the rotational speed lII''Nt of the motor 12 decreases from N□ to Nl.In this case, the motor 11 has a load current taX, - and a load current fN1mm. What is the relationship with?

I**>Is goose ・・・・・・・・・ 0)2
1. Further, in this case, the chain 162 storage vinyl rolls 9, 9 are made to have the same speed through the d(-)(-2) and the rotational speed fN of the motor 11
The rotational speed fN□2 is.

N11=N□ ・−−−−−−−−(4) This is the relationship.

As a result of the above, comparators 34 and 35 will both output the %lt signal, as shown in Figure 3.
The circuit 36 is opened and a delivery confirmation signal is output from the delivery confirmation signal generation circuit 37.

Along with this, the stored pinch roll 9%9 is released and the motor 11 is stopped, and then the motor 12 shifts to high speed rotation, and the damp bar 2 is raised II'I# onto the charging car 10 at high speed. Chill.

Thus, in this embodiment, the dummy par 2 is a storage pinch roll 9%9111 which is a conveying device of 7#/
It is possible to automatically and reliably confirm the arrival of the chain 10111 with the chain 16, which is the conveyance device for oh et al.

As explained above, #1: The delivery confirmation circuit for the conveyed object in the conveyance device according to the present invention commands the electric IRk of the conveyance device of the holder t to set the first rotation speed, and also gives the drooping characteristic of Kwl. Instruct one motor of the transfer device of the brush to change the second rotation speed higher than the rotation speed of the bolt, and give the lower and lower characteristics of the motor to reduce the rotational stray current of the motor of %W/ and the second motor. If the rotational stray current of
Under the condition that the load on the electric motor of 1 is more than 100%, the conveyed object is transferred to the 7th conveying device # oh C-, and the second conveying device is recognized as 6ii. If the object is transferred from 1 ton of transport at @I to the transport device at @K, it will be automatically checked manually
f) It is possible to reliably confirm the number of hours, thereby saving labor.

4. Simple JIi TL of drawings! 11f1 1 [Figure 7 and Figure 2 show an overview of continuous casting equipment
Figure rIiJ %H13 is an enlarged view of the rolled-up part of the steering wheel in Figure 2, and Figure 2 is a block diagram showing the configuration of an embodiment of the present invention. , FIG. 1 is a load current-rotational speed f characteristic diagram of an electric motor for explaining a 1ef embodiment.

2...Transferred object (dummy par)%9...
・Transportation equipment f for whistle l (storage pinch roll), 11...
...IIE101 motive (Mo J), 12-...1st electric motor (motor), 16...11 conveyance device (Senboku-n), 34...1st Comparison means (comparison!!s), 35--Comparison means (comparator) for broomstick, 40...Rotation speed opening control circuit.

Claims (1)

[Claims] The object to be transported by the transport device of @/ is
3. The first transporting device is driven by the Homare transportation WE Sea, which is configured to be continuously transported by a second transporting device cascade-connected to the transporting device. Electric motor#
At the same time as issuing the vertical rotational speed command of Chapter C, the ml/ motor is given a lowering characteristic of the rotational speed of IIE/ in accordance with the increase in load current. And a rotational speed higher than the rotational speed given to the second electric motor that drives the second conveying device is sent to the rotational speed command tube of %A@transferring station command Kk and % and O chicks. The rotational speed control circuit and the rotation speed control circuit that determines the working characteristics of the broom JO@@ device according to the increase in its load current to the electric motor and the IIJ
II/ comparison means for comparing each load current of the motor;
The filler is equipped with a comparison means for comparing the rotational speeds of the JO motors m- and t, and based on the comparison means of the brooms and scales, the electric motor of the 1% tuna J is At the point in time when the respective rotational speeds are equal and the load current R of the motor 11EJ becomes larger than the load current of the motor 1 of the vote I. A circuit for ensuring reception of a transported object by a transport device fK, characterized in that it is determined that the transported object has been received by the military transport device from the first transport device.