KR910000795Y1 - Erroneous setting-up detecting apparatus of crane-tongs notch - Google Patents

Abstract

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Description

Error setting device of crane notch for shifting slab position

1 is a front layout view of a plasma display screen related to the present invention.

2 is an example of a configuration error detection circuit according to the present invention.

Figure 3a, b is another embodiment of the alarm in Figure 2;

4 is a reference diagram of a crane barrel operating panel.

5 is a reference diagram showing the relationship between the notch and the hardware slab in the crane barrel.

* Explanation of symbols for main parts of the drawings

1: plasma display 13a-13c: 2nd-4th light detector

21-23: optical sensing output logic unit 31-33: first-third comparison unit

4: logic setting section 41: crane lever switch

5: Logic output part 6: Alarm drive part

The present invention relates to a notch device of a crane barrel in a crane tracking system of a slab yard, and more particularly, by not setting the crane barrel notch when the driver operates the operating panel of the workbench. The present invention relates to a setting error detection device of a crane barrel notch for moving a slab position designed to recognize a working error.

The slab yard crane tracking system in this technical field is a system that tracks and transports a slab with a computer to manage a number of slabs in a loaded state and loads the vehicle into a vehicle. The device is marked with a plasma display in the crane cab.

Accordingly, in the crane cab, the main operation of the operation indicated by the plasma display is performed in the guided radio apparatus, and the indicated operation is the driving and address of the current position of the crane, the driving and address to the target position, the unique number of the slab. A light will appear.

As an example, FIG. 1 shows an example of the plasma display.

The plurality of display irradiations 11 here are arranged at equal intervals vertically and horizontally, and the slab work display portion 12 instructed from the computer is arranged in the vicinity of the upper middle portion thereof.

In addition, the slab work display section 12 is configured to display first to fourth slab work display lines 12a-12d partitioned from one to four columns to display the mesh unique number of the slab.

When the worker acts according to the instructions displayed on the first to fourth slab work display lines 12a to 12d, the operator switches the number of switches of the slab number setting switch unit 72 on the operating panel 7 side as shown in FIG. Press 1s-4s) and set the crane position on the instrument panel (71) side.

That is, at this time, when the guideline is set to 0 on the instrument panel 71 side, the notch 82 associated with the cylinder 81 is displaced to the thickness position of the slab number 1 in the crank barrel 8 of the fifth embodiment. For example, at 230, the thickness of slab 2 is increased, at 460, 3 slabs, and at 690, 4 slabs are displaced.

After that, the crane lever is operated to perform the slab transfer.

However, in this technique, there is no conventional method for recognizing a notch setting error that may occur due to an operation error of the worker while the operator performs the notch setting operation as described in the computer-indicated plasma display 1. As a result, the disadvantages of accurate slab position management and handling have increased.

For example, when a work order to move one slab to a specific location is displayed on the plasma display screen, the operator sets the two notch settings to two pieces due to an error in repeated work. In the calculation result, it is recognized that one sheet that is misplaced and moved is still stacked in a predetermined position, and in this state, it is recognized that one sheet that is in progress is still stacked in a predetermined position. Work continues in this state, causing other slabs to enter the post-process, causing confusion in management.

This has also led to claims for the consumer's quality or even the disadvantage of equipment damage.

These disadvantages remained a problem that, as a result, was difficult to expect good practical value in such a processing device.

The object of the present invention is to improve the above problems, which provides a means to indicate that this is a wrong setting, especially when the operator of the notch setting is not the state set by the computer. It provides a crane barrel notch setting error detection device.

The present invention especially compares the instructions indicated on the plasma display of the indication work indication with the signal by the photosensitive detection and the crane notch setting signal which the operator acted, and the authenticity of the operation of the crane lever in this state. It is characterized by a crane barrel notch setting error detection device of a simple configuration to determine and to alarm.

Hereinafter, this will be described in more detail.

1 shows a plasma display 1 to which a light sensing means of the present invention is applied.

Here, in the first-fourth slab work display lines 12a-12d of the plasma display 1, it is detected whether they are lit on the same line from the first-fourth slab work display lines 12a-12d. The 2nd-4th light sensor 13b-13d is arrange | positioned.

2 shows a control circuit of the setting error detection apparatus according to the present invention.

Here, the second-fourth light detectors 13b-13d and the first-third light sensing output logic section 21-23 by the first-third buffers 21a-23a are provided on the output side thereof. The output of the photosensitive output logic section 21-23 is provided as an input of the first-third logic gates 31a-33a of the first-third comparison section 31-33.

Another input of the first to third logic gates 31a to 33a is the first to third logic inputs 31b to the selection of the number selection switch 2s-4s on the operation panel 7 side of FIG. 33b) is connected.

The first-third comparator 31-33 output is provided by first-third gates 4a-4c that AND and logic the output and one logic input associated with the lift lever switch 41. It is connected to the logic setting part 4, and each output of this logic setting part 4 is connected to the alarm drive part 6 via the logic output part 5 by the or gate 5a.

In addition, the alarm driver 6 electrically insulates the optocoupler 61 from the output of the logic output unit 5, and the visual indicator 62 directly connected to the display element of the optocoupler 61 and its output side. The buzzer (BZ) control relay (RY) is connected.

In addition, the alarm driver 6 may be a buzzer BZ driving circuit by a darling cone-coupled transistor that does not include the relay RY as shown in FIG. 3A, and the logic output unit 5 as shown in (b). It can also be given as a circuit for switching the buzzer BZ by the relay RY which is directly driven by the output logic.

The present invention of such a configuration is as follows.

That is, when the work contents instructed by the computer are displayed on the first-fourth lab work display lines 12a-12d of the plasma display 1, the operator sets the number of slabs on the control panel 7 by the number select switch 1s-. 4s) and the notch setting setting operation by the instrument panel 71 are performed.

At this time, the operator assumes that the second slab work display line 12b lights up when the instructions indicate that the second slab work display line 12b of the first to fourth slab work display lines 12a-12d is lit. The second light sensor 13b senses the state in which it is.

Thereafter, the operator presses 2s corresponding to the two slabs of the number selection switch unit 72 on the operation panel 7 of FIG. 4, and sets the gauge guideline on the instrument panel 71 to 230.

In this state in which the operation is normally performed, the first light sensing output logic section 21 of the setting error detecting circuit of the second ceramic art performs the first comparison through the first buffer 21a by the response of the second light detector 13b. One logic input is provided to the logic gate 31a of the unit 31.

At this time, when the number selection switch 2s of the second logic input section 31b is normally pressed to another input, the two input logics of the logic gate 31a become the same level, and their output is exclusive. Output logic level 0 by

Accordingly, the first gate 4a of the logic setting unit 4 side is provided with a logic 0 at one input thereof, and then, even if the crane lever switch 41 which is operated by operating the crane lever is turned ON. 1 The comparator 31 output is not generated.

Similarly, when the switch selection of the number selection switch unit 72 on the control panel 7 side is set to 3s, 4s, etc., and the instrument on the instrument panel 71 side is switched to the notch setting position side, the second, The third light sensing output sections 22 and 23, the second and third comparison sections 32a and 33a, the second and third logic input sections 32b and 33b, the logic setting section 4, and the like have the same effect. Will be.

However, when the operation of the operation panel 7 side is not performed as instructed by the first to fourth slab job display lines 12a-12d on the side of the plasma display 1, the setting error detection circuit performs an alarm operation. Will be done.

That is, as shown in the above example, when 2s corresponding to the two sheets are not pressed and the number switch 3s or 4s of the second and third logic input units 32b and 33b is pressed, the second and third comparison units 32 and 33 are pressed. Since the output logic of any one of the logic gates 32a and 33a is 1, the input logic of any of the second and third gates 4b and 4c of the logic setting section 4 also becomes 1.

As a result, the output is generated in the logic setting section 4, so that the alarm section 6 is driven through the logic output section 5 of the or gate 5a.

That is, in the alarm unit 6 of the second embodiment, the display element of the optocoupler unit 61 due to the output from the logic output unit 5 is turned on, which is transmitted to the phototransistor.

Thereby, the relay RY for driving the buzzer BZ is driven to drive the buzzer BZ.

In addition, the visual indicator 62 connected to the display element of the optocoupler portion 61 can visually recognize this state.

Also, as shown in FIGS. 3A and 3B, the alarm unit 6 may be used to directly drive the buzzer BZ to the output of the logic output unit 5 or directly drive the relay RY.

The present invention can be recognized by the simple circuit in the crane notch operation in the slab yard crane tracking system to the crane notch operation according to the work instruction by the remote control of the computer, the reliability of workability to such a device There are beneficial features such as to make things better.

Claims (1)

In a device including a plasma display (1) including a slab work display line (12a-12d), an operating panel (7) including a slab number setting switch section (72) and an instrument panel (71), and a lifter crane lever, The slab work display lines 12a-12d include a plurality of light detectors for detecting the corresponding spot lighting of these lines, and a light detector and a buffer for generating respective logic outputs from signals generated from the plurality of light detectors. A plurality of optical sensing output logic units, a plurality of logical sensing units for comparing the plurality of optical sensing output logic outputs and the operating state of the selection switch of the slab number setting switch unit 72, the output of the logic comparing unit and the crane lever switch A logic setting section 4 for comparing and outputting the input state with (41), a logic output section 5 for generating one output logic from a plurality of outputs of the logic setting section 4, and this logic output section 5 Output of The crane bucket set error detecting apparatus of the notch for positioning slab, characterized in that a specific configuration having an alarm unit (6) including a buzzer (BZ) in that the visual display and audio.