JPH02110013A - Method and device for detecting clogging of carried article in hood of carrying equipment - Google Patents

Abstract

PURPOSE:To simply and quickly detect the clogging of a wire coil in the above mentioned device of a wire coil carrying equipment by arranging a detector at a conveyor inlet and positions set at fixed spaces respectively, and outputting a clogging signal when the wire coil has not passed through the above detector by an allowable arrival time at each detector. CONSTITUTION:A detector 6 detects the tip of a wire coil coming out of a mill 1 to input a detecting signal into a control device 18. The wire coil W is detected by detecting elements 17 arranged at various positions respectively during a carrying process, and its detecting signal is inputted into the control device 18, which counts each time required from detection at the detector 6 to the detection at each of the detecting elements 17. An allowable time required to arrive at each of the detectors 17 from the detector 6 is previously determined on the basis of a distance between the detector 5 and each of the detectors 17 and carrying speed, and in the case where the wire coil does not arrive at each of the detectors 17 after the above allowable time elapses, the wire coil is judged to be in clogging to output a clogging signal. This formation can simply and quickly detect the clogging of the wire coil and facilitate coping with the clogging.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is applicable to conveyance equipment, etc. in which rolled and wound wire rod coils are conveyed to a concentrating equipment by a conveyor (chain conveyor) covered with a hood. The present invention relates to a method and device for detecting clogging of conveyed objects in a hood.

[Conventional technology]

Conventionally, the top of a long continuous conveyor is covered with a hood in order to slowly cool the rolled and wound wire coil while it is being conveyed. Even if the coil is not transported, this cannot be detected immediately. The operator determines that a blockage has occurred when the wire coil does not come out of the conveyor that has been waved by the hood after a predetermined period of time, and for example, performs an emergency cut with the shear in front of the rolling mill to prevent the subsequent wire coil from being conveyed. They were trying to prevent it from being loaded onto the conveyor.

[Problem to be solved by the invention]

However, if a "clog" occurs in the differential conveyor, the timing of the decision will be delayed and an emergency cut will be initiated because the conveyor is differentially conveyed by the hood and the conveyor path is long, usually over 50 m in length. During this time, a large amount of wire coils are fed into the conveyor, and all of the wire coils end up staying inside the conveyor, which is waved by the hood. These would be disposed of as rolling waste, resulting in great waste due to the delay in determining the occurrence of clogging.

[Purpose of the invention]

The present invention has been made in order to solve the above-mentioned problems, and it is possible to easily and quickly detect that the conveyed object has become impossible to convey within the conveyor by the method of the present invention.
It is also an object of the present invention to enable the method of the present invention to be effectively carried out by the apparatus of the present invention, and to facilitate countermeasures after the occurrence of clogging is detected.

[Means to solve the problem]

The first method of detecting clogging of conveyed objects in a hood in conveyor equipment according to the present invention is to detect clogging of conveyed objects in a hood in conveyor equipment in which a wave is applied above the conveyor by a hood. Even if the arrival time calculated from the conveyance speed to detector 1 exceeds the allowable range, the detection position by the detectors installed at predetermined intervals on the conveyor It is characterized in that it is determined that a blockage has occurred when the passage of a conveyed object cannot be detected.

The device for detecting clogging of conveyed objects in a hood in a conveyance facility according to the second aspect of the present invention is a conveyance facility in which a hood is used as a differential wave above the conveyor. , a detector for stopping a time counter capable of detecting the passage of a conveyor is provided, and a detector for starting a time counter capable of detecting the passage of a conveyor is provided on the entrance side of the first conveyor; Calculates the arrival time from the detection position by the detector to the detection position by each of the detectors, and outputs a clogging occurrence signal when no detection signal is input from the time counter stop detector by the time obtained by adding the allowable time to this. The invention is characterized in that it is equipped with a control device that

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an apparatus for implementing the method of the present invention (apparatus of the present invention) will be described below with reference to the drawings.

In the figure, 1 is a finishing rolling mill, 2 is a winding machine, 3 is a conveying facility, and 4 is a converging facility. 3 and is conveyed to a collection facility 4 by a conveyor 5.

6 is a detector (hot lump detector HMD in the example), which is installed between the finishing rolling mill 1 and the winding machine 2 so as to be able to detect the tip of the wire rod of a certain length sent from the finishing mill 1 to the winding machine 2; It is used to start a counter of the arrival time of the conveyed object to the detection position by the detector 17.

The conveyor equipment 3 includes a plurality of conveyors 5 (4 in the embodiment).
A hood 8 is connected to the transport conveyor 5 and has a lower end open from the inlet end to the middle part of the equipment, and a lower end closed from the middle part to the outlet end.
The lower end opening of the hood 8 is connected to the discharge side of a blower 10 through a duct 9, and the blower 1o causes cooling air to flow toward the wire coil W on the conveyor 5. There is.

The hood 8 is provided with a plurality of lids 12 that can be opened and closed independently from each other in the longitudinal direction of the conveyor, at the upper openings of opposing side walls 11 through which each roller of the conveyor 5 passes. Open and close the lid 12 of the acid type 1 as appropriate.
The wire coil W that is stuck under 2 can be taken out. In order to reduce the cooling rate of the wire coil W, a heat insulating material is attached to the inner surface of the side wall 11 and the lid 12 by pasting or the like.

At the discharging end of each conveyor 5, a detection rod 14 that is rotatably supported horizontally via a bearing 13 is provided so as to penetrate through the side wall 11 of the hood 8.

A detector 15 that can come into contact with the wire coil W discharged from the conveyor 5 is vertically installed in the middle of the detection rod 14, and a rotating piece is attached to one end of the detection rod 14 extending outside the hood 8. 16 are installed vertically. And each rotating piece 16
A detector 17 for stopping a time counter capable of detecting the passage of the wire coil W is disposed directly below.

Said detector 6.17 is connected to a control device 18.

The control device 18 includes a control device in which the wire passes through the position detected by the detector 6 and is wound up by the winder 2, and then is conveyed by the conveyor 5 and reaches the position detected by each detector 17. Arrival time up to T+ , Tz , Tel
, T4 is manually set, and counting of arrival time is started at the time when the signal is input from the detector 6, and the arrival time calculated by the input formula is added by the allowable time α. A clogging occurrence signal is output when no detection signal is input from the detector 17.

In this embodiment, a rotatable detection rod 14 with a detector 15 and a rotary piece 16 is used in order to arrange the detector 17 outside the hood 8, but it is also possible to use a photo sensor or the like for the detector 17. , it goes without saying that this may be installed inside the hood 8.

[For production]

When the tip of the wire rod coming out of the finishing rolling mill 1 reaches the detector 6 position, it is detected by the detector 6, and this detection signal is sent to the control bag N1.
8 is input.

Further, when the wire coil W enters the conveyance equipment 3 and is conveyed by the conveyor 5, the wire coil W comes into contact with the detector 15 at the delivery end of the conveyor 5 and pushes it.
The detection rod 14 receives rotational force from the wire coil W via the detector 15 and rotates, and the rotating piece 1 provided at one end of the detection rod 14 rotates.
6 also rotates, and the rotation is detected by the detector 17. Therefore, the wire coil W is detected by the detector 17, and this detection signal is input to the control I device 18.

The controller 18 detects the detector 6 when the wire coil W is being conveyed smoothly without being caught on the conveyor 5.
The counting of the arrival time started by the input signal from the detector 17 is stopped by the input signal from the detector 17 within a predetermined time, and no clogging occurrence signal is output.

However, for example, even though the wire coil W has passed the dispensing end of the first conveyor 5 within the predetermined time T1 + α (as confirmed by the detection signal), the second conveyor 5
If the detection signal of the wire coil W is not input to the control device 18 even after the predetermined time T2+α has elapsed from the unloading end of the wire rod, it means that a blockage has occurred in the second conveyor 5 and the blockage has occurred, and the control device 18 outputs a blockage occurrence signal. Output. This detection signal activates an alarm installed on the second conveyor 5, indicating the second conveyor 5 in the area where the blockage has occurred, and at least the first conveyor 5 in the area before the blockage. At the same time as the conveyor 5 is stopped, each device is operated so that the wire rod being rolled is divided by the front shear of the finishing rolling mill 1 and the subsequent wire rod is chipped, and the wire rod coil W is fed to the conveyor film rR3. will be suspended.

The worker knows the clogging area a, b, C, or d using the alarm or the like, and opens the lid 12 of the hood 8 in that area.
The clogged wire coil W on the conveyor 5 is removed, and then the operation is restarted.

Therefore, the wire coil W is conveyed in the hood 8 by the conveyor 5, and the conveyance speed is, for example, 0.111115.
If it takes 10.5 minutes from entering the hood 8 to exiting the hood 8, the wire coil W gets caught just before the discharging end of the first conveyor 5, and even if it takes 7.5 minutes to exit from the hood, conventionally the hood Since the wire rod coil W does not come out from 8, it will take more than 10.5 minutes to discover the occurrence of the blockage, and during that time, a large amount of wire rod coil (rolled layer) will be sent to the conveying equipment 3 by the winder 2. However, with this device, the clogging area a can be detected using an alarm or the like and can be dealt with directly, so the amount of wire coils needed can be extremely small.

Next, the method of the present invention will be explained using the apparatus as described above.

In the method of the present invention, the wire coil W
from the detection position by the time counting start detector 6 provided on the entrance side of the conveyor 5.
Clogging occurs when the passage of the wire coil W cannot be detected at the detection position by the detector 17 even if the arrival time TI, T2, T3, T4 calculated from the transport speed to the detection position in 7 exceeds the allowable range (+α). It is characterized by the determination that

Incidentally, a plurality of conveyors 5 are arranged in series, and a detector 17 is provided at each discharging end of the conveyor 5 to sequentially detect passage of the wire coil W. When it is determined that a clogging has occurred, the conveyor 5 before the relevant area However, all conveyors 5 may be stopped.

[For production]

Calculated from the conveyance speed from the detection position by the time count start detector 6 provided on the entrance side of the conveyor 5 to the detection position by the time count stop detector 17 provided at a predetermined interval on the conveyor 5. Arrival time T,,T,
Even if the tolerance range (+α) of , T, , T, is exceeded, the blockage is determined to have occurred when the passage of the wire coil W cannot be detected at the detection position by the detector 17. , the region where it occurs can also be seen.

As can be seen from the effects of the embodiments described above, the apparatus of the present invention is effective when directly used to carry out the method of the present invention.

〔Effect of the invention〕

As described above, according to the method of the present invention, it is possible to easily and quickly detect in which area of the transport conveyor covered with M the hood a clogging has occurred, so that clogging accidents on the transport conveyor can be promptly dealt with, and rolling Generation of waste etc. can be minimized.

In addition, according to the device of the present invention, it is possible to detect in which area of the conveyor that is subjected to differential waves by the hood a blockage has occurred, and to remove the blockage by stopping the conveyor before the area where the blockage has occurred. While the conveyor is stopped and the clogging is removed, the conveyor after the conveyor can be continuously operated, which is extremely effective in implementing the method of the present invention, and the operation rate of the conveyor can be improved compared to the conventional method. can be significantly improved. Further, due to its simple configuration, it can be easily applied to existing equipment, and the equipment cost is low.

[Brief explanation of drawings]

Fig. 1 is a conceptual diagram showing an embodiment of the apparatus for carrying out the method of the present invention (device of the present invention), Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is an enlarged view taken along line A~ in Fig. 1. 4 is an enlarged sectional view taken along line B in FIG. 1. 3... Transfer equipment, 5... Transfer conveyor, 5a... Front stage conveyor, 5b... Back stage conveyor, 6... Time count starts Detector, 8...Hood, 11...Side wall, 12
...Lid, 13...Bearing, 14...
...Detection rod, 15...Detector, 16...
・Rotating piece, 17... Time counting stop detector, 18... Control device, W... Wire coil, a, b, c,, d... ···region.

Claims (2)

[Claims] (1) In a conveyor facility where the upper part of the conveyor is covered with a hood, the detection position from the detection position by the detector installed on the entrance side of the conveyor to the detection position by the detector installed at a predetermined interval on the conveyor. Even if the arrival time calculated from the conveyance speed exceeds the allowable range, it is determined that a clogging has occurred when the passage of the conveyed object cannot be detected at the detection position by the detectors provided at intervals on the conveyor. A method for detecting clogging of transported objects in a hood in transport equipment. (2) In a conveyance facility where the upper part of the conveyor is covered with a hood, multiple conveyors are installed in series, and a detector for stopping a time counter that can detect the passage of conveyed objects is installed at the discharge end of each conveyor. A detector for starting a time counter capable of detecting the passage of the conveyed object is provided on the entrance side of the first conveyor, and the arrival time from the detection position by the detector to the detection position by each of the above-mentioned detectors is provided. in a hood in a conveying facility, characterized in that a control device is provided for outputting a clogging occurrence signal when a detection signal is not inputted from the time counter stop detector by a time obtained by adding an allowable time to the detection signal. Conveyed object jam detection device.