KR101529200B1 - Apparatus for monitoring conveyor belt - Google Patents

Apparatus for monitoring conveyor belt Download PDF

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Publication number
KR101529200B1
KR101529200B1 KR1020130164584A KR20130164584A KR101529200B1 KR 101529200 B1 KR101529200 B1 KR 101529200B1 KR 1020130164584 A KR1020130164584 A KR 1020130164584A KR 20130164584 A KR20130164584 A KR 20130164584A KR 101529200 B1 KR101529200 B1 KR 101529200B1
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KR
South Korea
Prior art keywords
conveyor belt
sensor
reference point
length
unit
Prior art date
Application number
KR1020130164584A
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Korean (ko)
Inventor
이정한
김웅
박영국
Original Assignee
현대제철 주식회사
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Priority to KR1020130164584A priority Critical patent/KR101529200B1/en
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Publication of KR101529200B1 publication Critical patent/KR101529200B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating

Abstract

The present invention relates to a conveyor belt monitoring apparatus, which comprises a sensor section for detecting a reference point of a conveyor belt, a control section for judging whether or not the conveyor belt is abnormal based on the reference point detection result through the sensor section, And an output section for outputting the occurrence.

Description

[0001] APPARATUS FOR MONITORING CONVEYOR BELT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a conveyor belt monitoring apparatus, and more particularly, to a conveyor belt monitoring apparatus capable of automatically detecting an abnormality of a conveyor belt and informing a user of a replacement timing, thereby assisting safe use of the conveyor belt.

A conveyor is a mechanical device that automatically and continuously transports materials and articles within a certain distance. It is used for transporting parts in a factory, moving semi-finished products, transporting coal, ore, cargo in mines or harbors, And sand transportation.

Such a conveyor can be classified into various types according to the purpose and type, and examples thereof include a conveyor belt, a screw conveyor, a bucket conveyor, an air conveyor, a chain conveyor, a roller conveyor, a trolley conveyor, and a fluid conveyor.

In particular, conveyor belts circulate belts made of rubber, fabric, wire netting, steel sheet, etc., and carry the objects continuously on the belt.

The conveyor belt includes a belt on which an object is placed, a plurality of rollers for rotating the belt in a predetermined direction, and a driving motor for driving the rollers.

Specifically, the belt of the conveyor belt is divided into a conveyance belt for moving the conveyed material and a conveyor belt for returning to the conveyor belt.

That is, the belt that moves the conveyed object becomes a conveyor belt, and the belt that returns after conveying the conveyed object to the destination becomes a conveyor belt. At this time, the conveying roller supports the conveying belt, and the conveying roller supports the conveying belt.

Related Prior Art Korean Patent Laid-Open Publication No. 10-2011-0049693 (published on May 12, 2011, entitled: conveyor diagnostic apparatus and conveyor diagnostic system) is available.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a conveyor belt monitoring system which can automatically detect the abnormality of a conveyor belt by calculating the length of a conveyor belt that changes according to driving of the conveyor belt, Device.

According to an aspect of the present invention, there is provided an apparatus for monitoring a conveyor belt comprising: a sensor unit for sensing a reference point of a conveyor belt; A controller for calculating a moving speed and a length of the conveyor belt based on the reference point sensing and determining whether the conveyor belt is abnormal based on the calculated length; And an output unit for outputting an abnormality of the conveyor belt under the control of the control unit. The control unit may further include a memory unit for accumulating the length of the conveyor belt, Wherein the controller calculates the traveling speed and the length and stores the traveling speed and the length in the memory unit and determines whether the conveyor belt is abnormal based on the calculated length, And determining that an abnormality has occurred in the conveyor belt if the average length of the conveyor belt is longer than the reference value.

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In the present invention, the sensor unit includes a first sensor and a second sensor, and the control unit may determine a difference between a time at which the reference point is detected through the first sensor and a time at which the reference point is detected through the second sensor, And calculating the length of the conveyor belt on the basis of the time interval at which the reference point is sensed again through the first sensor or the second sensor and the calculated moving speed .

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The controller determines that an abnormality has occurred in the conveyor belt if the reference point is not sensed again within the reference time after the reference point is first detected through the sensor unit.

According to the present invention, by detecting the specific position of the conveyor belt through the sensor, the length of the conveyor belt can be calculated to easily detect the abnormal occurrence of the conveyor belt.

Further, according to the present invention, since the occurrence of abnormality of the conveyor belt is automatically detected without the intervention of the user and the replacement timing is informed, it is possible to reduce the labor of the user who must directly determine whether the conveyor belt is abnormal.

1 is a block diagram of a conveyor belt monitoring apparatus according to an embodiment of the present invention.
2 is a simplified view of a sensor unit positioned to sense a reference point in a conveyor belt monitoring apparatus according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating an implementation process of a conveyor belt monitoring method according to an exemplary embodiment of the present invention. Referring to FIG.

Hereinafter, a conveyor belt monitoring apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a block diagram of a conveyor belt monitoring apparatus according to an embodiment of the present invention.

2 is a simplified view of a sensor unit positioned to sense a reference point in a conveyor belt monitoring apparatus according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, a conveyor belt monitoring apparatus according to an embodiment of the present invention includes a sensor unit 10, a control unit 30, a memory unit 50, and an output unit 70.

The sensor unit 10 senses the reference point P of the conveyor belt 1. At this time, the reference point P means a point at which the sensor unit 10 senses a specific position, and may include all the indications that can identify a specific position.

That is, when the reference point P is formed in a constant groove, the sensor unit 10 is implemented as a distance sensor (not shown) so that a position at which the distance to the conveyor belt 1 is measured is referred to as a reference point P And the sensor unit 10 may be implemented as a magnetic sensor (not shown) to sense the reference point P when the reference point P is represented by a magnetic component or the like.

In addition, since the present embodiment is not limited thereto, it is possible to form a reference point P in various ways that can identify a specific position and sense through the sensor unit 10.

The sensor unit 10 may include a first sensor 12 and a second sensor 14 for sensing the reference point P of the conveyor belt 1 at different positions.

The control unit 30 determines whether or not the conveyor belt 1 is abnormal based on the detection result of the reference point P via the sensor unit 10. [

Specifically, the control unit 30 calculates the moving speed and the length of the conveyor belt 1 based on the detection result of the reference point P via the sensor unit 10, and calculates the error of the conveyor belt 1 based on the calculated length It is possible to judge whether or not it occurs.

That is, in this embodiment, the length of the conveyor belt 1 is detected by sensing the movement of the reference point P of the conveyor belt 1 in order to detect the situation where the conveyor belt 1 is stretched by repetitive driving, Can easily be judged.

2, the first sensor 12 and the second sensor 14 detect the reference point P of the conveyor belt 1 at different positions, so that the controller 30 controls the respective sensors 12, The moving speed of the conveyor belt 1 can be calculated based on the difference in time at which the reference point P is sensed.

That is, the control unit 30 determines the distance d between the first sensor 12 and the second sensor 14 at the time when the reference point P is sensed through the first sensor 12, The moving speed of the conveyor belt 1 can be calculated by dividing the moving speed of the conveyor belt 1 by the difference in time at which the reference point P is sensed.

The control unit 30 calculates the length of the conveyor belt 1 based on the time interval at which the reference point P is sensed again through the sensor unit 10 and the calculated moving speed of the conveyor belt 1. [

Specifically, the length of the conveyor belt 1 can be calculated by multiplying the travel time of the calculated conveyor belt 1 by the time interval at which the reference point P is again sensed through the specific sensors 12, 14.

However, the method of calculating the length of the conveyor belt 1 is not limited to the above-described example, and various other methods may be used.

That is, when the sensor unit 1 is not provided as a plurality of sensors as described above, the time interval during which the reference point P is sensed through the sensor unit 1 and the rotation speed of the driving unit (not shown) It is possible to calculate the length of the conveyor belt 1 and to calculate the length of the conveyor belt 1 in various ways not described.

The control unit 30 accumulates the calculated length of the conveyor belt 1 in the memory unit 50 so as to confirm the change of the length of the conveyor belt 1. [

The control unit 30 determines whether or not the conveyor belt 1 is abnormal based on the calculated length of the conveyor belt 1. [

The controller 30 determines that an abnormality has occurred in the conveyor belt 1 if the calculated length of the conveyor belt 1 is longer than the average length of the conveyor belt 1 accumulated in the memory unit 50 can do.

In this case, the reference value means a length that the conveyor belt 1 has been stretched in a normal range to the extent that the conveyor belt 1 does not deviate from the path, and may be set differently according to various factors such as the surrounding environment in which the conveyor belt 1 is located.

That is, in the present embodiment, when the length of the calculated conveyor belt 1 is increased to such an extent that the calculated conveyor belt 1 is deviated from the path, the controller 30 can determine that an abnormality has occurred in the conveyor belt 1, ) To output an abnormality occurrence.

The control unit 30 may determine that an abnormality has occurred in the conveyor belt 1 if the reference point P is not sensed again within the reference time after the reference point P is first sensed through the sensor unit 10. [

The control unit 30 may not detect the reference point P from the sensor unit 10 when the conveyor belt 1 is moved in a meandering manner, ) Is detected and is not detected again within the reference time, it is judged that an abnormality has occurred in the conveyor belt (1).

Therefore, the reference time may be set to the time required for the reference point P to be detected again in correspondence with the average length of the conveyor belt 1 accumulated in the memory unit 50, and may be set according to various other conditions .

The memory unit 50 accumulates and stores the length of the conveyor belt 1 calculated by the control unit 30. [

That is, the control unit 30 repeats the process of calculating the moving speed and the length of the conveyor belt 1 every time the reference point P is sensed through the sensor unit 10, So that the change of the length of the conveyor belt 1 can be confirmed later.

The output unit 70 outputs an abnormality of the conveyor belt 1 under the control of the control unit 30. [ That is, when it is determined that an abnormality has occurred in the conveyor belt 1 according to the determination of the control unit 30, the output unit 70 can warn the user by outputting an abnormality.

The output unit 70 may include an alarm (not shown) for audible warning or a display unit (not shown) for visual warning.

FIG. 3 is a flowchart illustrating an implementation process of a conveyor belt monitoring method using a conveyor belt monitoring apparatus according to an embodiment of the present invention. Referring to FIG.

3, the control unit 30 senses the reference point P of the conveyor belt 1 through the sensor unit 10, and then, (S10).

The sensor unit 10 may include a first sensor 12 and a second sensor 14 for sensing the reference point P of the conveyor belt 1 at different positions.

The control unit 30 calculates the moving speed and the length of the conveyor belt 1 based on the detection of the reference point P (S20, S30).

Specifically, the control unit 30 can calculate the moving speed of the conveyor belt 1 based on the difference in time at which the reference point P is sensed through each of the sensors 12 and 14 (S20).

That is, the control unit 30 determines the distance d between the first sensor 12 and the second sensor 14 at the time when the reference point P is sensed through the first sensor 12, To the time interval at which the reference point P is sensed, thereby calculating the moving speed of the conveyor belt 1.

The control unit 30 controls the conveyor belt 1 based on the time interval at which the reference point P is sensed again through the first sensor 12 or the second sensor 14 and the calculated moving speed of the conveyor belt 1, (S30).

That is, the length of the conveyor belt 1 can be calculated by multiplying the travel time of the calculated conveyor belt 1 by the time interval at which the reference point P is again sensed through the specific sensors 12, 14.

The control unit 30 stores the calculated length of the conveyor belt 1 in the memory unit 50 at step S40 and determines whether or not an abnormality of the conveyor belt 1 is detected based on the calculated length of the conveyor belt 1 (S50).

The control unit 30 determines whether the length of the calculated conveyor belt 1 is longer than the average length of the conveyor belt 1 accumulated in the memory unit 50 or the length of the reference point P through the sensor unit 10, It is determined that an abnormality has occurred in the conveyor belt 1 if the reference point P is not detected again within the reference time.

That is, since the length of the conveyor belt 1 in the normal range can be calculated through the average of the lengths of the conveyor belts 1 accumulated in the memory unit 50 in the above-described step S40, An abnormality can be detected by judging whether the length based on the moving speed of the conveyor belt 1 is in the normal range.

If the reference point P is not sensed again within the reference time after the reference point P is sensed through the sensor unit 10 in order to sense the case where the conveyor belt 1 is moved in a meandering manner, It can be determined that an abnormality has occurred in the conveyor belt 1.

If it is determined that an abnormality has occurred in the conveyor belt 1 as a result of the determination S50, the control unit 30 warns the user by outputting an abnormality of the conveyor belt 1 through the output unit 70 (S60 ).

On the other hand, if it is determined in step S50 that no abnormality has occurred in the conveyor belt 1, the process returns to step S10 to repeat the above-described process.

According to the present embodiment, by detecting the specific position of the conveyor belt through the sensor, the length of the conveyor belt can be calculated to easily detect an abnormal occurrence of the conveyor belt.

Also, according to the present embodiment, the occurrence of an abnormality of the conveyor belt is automatically detected without the intervention of the user and the replacement timing is informed, so that the labor of the user who must directly determine whether the conveyor belt is abnormal can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

10: Sensor unit
12: first sensor
14: Second sensor
30:
50:
70:

Claims (6)

A sensor unit for sensing a reference point of the conveyor belt;
A controller for determining whether an abnormality has occurred in the conveyor belt based on the reference point detection result through the sensor unit; And
And an output unit for outputting an abnormality of the conveyor belt under the control of the control unit,
Further comprising a memory unit for accumulating and storing the lengths of the conveyor belts,
Wherein the controller calculates a moving speed and a length of the conveyor belt on the basis of the reference point detection result and stores the calculated moving speed and length in the memory unit and determines whether the conveyor belt is abnormal based on the calculated length,
Wherein the control unit determines that an abnormality has occurred in the conveyor belt if the calculated length of the conveyor belt is longer than the average length of the conveyor belt accumulated in the memory unit.
delete The method according to claim 1,
Wherein the sensor unit includes a first sensor and a second sensor, wherein the control unit controls the first sensor based on a difference between a time at which the reference point is sensed through the first sensor and a time at which the reference point is sensed through the second sensor And calculating a traveling speed of the conveyor belt and calculating a length of the conveyor belt based on a time interval at which the reference point is sensed again through the first sensor or a second sensor and the calculated traveling speed, Belt monitoring.
delete delete The method according to claim 1,
Wherein the control unit determines that an abnormality has occurred in the conveyor belt if the reference point is not sensed again within a reference time after the reference point is first sensed through the sensor unit.
KR1020130164584A 2013-12-26 2013-12-26 Apparatus for monitoring conveyor belt KR101529200B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102097934B1 (en) * 2020-03-17 2020-04-06 권두영 Recycling system for waste pet using cleaning unit motor load
KR102097926B1 (en) * 2019-11-21 2020-05-27 권두영 Recycling system for waste pet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409852A (en) * 1980-09-08 1983-10-18 Bridgestone Tire Company Limited Method of measuring stretch of conveyor belt
WO2009011306A1 (en) * 2007-07-18 2009-01-22 Bridgestone Corporation Conveyer belt monitoring system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409852A (en) * 1980-09-08 1983-10-18 Bridgestone Tire Company Limited Method of measuring stretch of conveyor belt
WO2009011306A1 (en) * 2007-07-18 2009-01-22 Bridgestone Corporation Conveyer belt monitoring system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102097926B1 (en) * 2019-11-21 2020-05-27 권두영 Recycling system for waste pet
KR102097934B1 (en) * 2020-03-17 2020-04-06 권두영 Recycling system for waste pet using cleaning unit motor load

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