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Conveyor belt longitudinal tear detecting method based on metal film diffuse reflection

A metal film, longitudinal tearing technology, used in conveyor objects, conveyor control devices, transportation and packaging, etc., can solve problems such as high hardware requirements, poor real-time performance, and low efficiency

Inactive Publication Date: 2016-01-06
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0004] The present invention is a method for detecting longitudinal tearing of a conveyor belt based on diffuse reflection of a metal film. The infrared reflectance of the metal film is more than 5 times that of the black tape. This physical property is combined with the CCD camera image detection technology to complete the method of longitudinal tear detection of the tape.

Method used

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  • Conveyor belt longitudinal tear detecting method based on metal film diffuse reflection
  • Conveyor belt longitudinal tear detecting method based on metal film diffuse reflection
  • Conveyor belt longitudinal tear detecting method based on metal film diffuse reflection

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the implementation of the present invention is described in detail as follows:

[0025] 1. The working process of the above-mentioned new conveyor belt longitudinal tear detection method is as follows: the outer surface of the black tape is covered with tape glue 5, before the belt glue 5 is dried and cured, the frosted metal tin film 4 is affixed to the entire outer surface of the tape. After the film 4 is closely combined with the black tape, a layer of elastic transparent floor paint 6 is applied on the outer surface of the frosted metal tin film 4. The frosted metal tin film 4 has good flexibility and infrared reflection properties, and the elastic transparent floor paint 6 is It has high light transmittance and strong wear resistance. After the surface modification is completed, the tape not only maintains the original flexibility and wear resistance, but also the reflectivity of the outer surface for infrared rays is ...

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Abstract

The invention discloses a conveyor belt longitudinal tear detecting method based on metal film diffuse reflection, and belongs to the technical field of conveyor belt online detection of coal mine enterprises. The conveyor belt longitudinal tear detecting method is characterized by being a detecting method for conveyor belt longitudinal tear by utilizing a physical property that infrared-ray reflectance of the metal film is 5 times that of a black adhesive tape and combining an infrared-ray CCD (charge coupled device) camera image detecting technology of a metal film. Infrared rays emitted by an area array infrared-ray light source used by the method cover half of the area of an adhesive tape; after the infrared rays generate diffuse radiation on the outer surface of a frosted metal tin film, one part of reflection signals are received by a CCD camera so as to draw out a surface condition figure of the half of the adhesive tape; by virtue of the design, less normal hardware equipment is utilized to realize wide-range and highly-real-time longitudinal tear early warning of a conveyor adhesive tape, so that purchasing and operation cost of the equipment is controlled within an acceptable range of the enterprises, and a misjudgment rate of an image analysis system to the adhesive tape outer surface state can be controlled to be lower than 10%.

Description

technical field [0001] The invention relates to a method for detecting longitudinal tearing of conveyor belts based on the diffuse reflection of metal thin films, belonging to the technical field of on-line detection of conveyor belts in coal mining enterprises, and in particular to a method utilizing the physical property that the infrared reflectivity of metal thin films is more than 5 times that of black tapes , and combined with the CCD camera image detection technology to complete the detection method for the longitudinal tear of the conveyor belt. Background technique [0002] Longitudinal tearing, transverse tearing, and fire are the three major disasters of belt conveyors, among which longitudinal tearing is the most common. Under the coal mine, if the longitudinal tearing of the belt cannot be found in time, it may cause the entire conveyor belt to be scrapped, or even cause casualties due to the rupture of the belt, which is not conducive to safe production. At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/02
Inventor 乔铁柱李心宇阎高伟庞宇松王峰靳宝全王东
Owner TAIYUAN UNIV OF TECH
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