Device and method for detecting defects of loudspeaker net by ultrasonic waves

A detection device and ultrasonic technology, which are applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, can solve the problems of uncontrollable quality, lack of detection means, poor sound propagation effect, etc., and achieve the effect of simple and accurate detection by the device and method

Active Publication Date: 2013-12-18
郑州领胜科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

In the process of processing, waste of colorless and transparent film-type pressure-sensitive adhesives may be leaked. The leaked waste will lead to poor sound transmission effect. The detection devices and methods commonly used in the industry are not sensitive to such materials. Detection is very tricky, and manual detection has many shortcomings such as low efficiency and uncontrollable quality.
For the defects of speaker mesh belt products, there has been a lack of a reliable and efficient detection method for a long time

Method used

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  • Device and method for detecting defects of loudspeaker net by ultrasonic waves
  • Device and method for detecting defects of loudspeaker net by ultrasonic waves
  • Device and method for detecting defects of loudspeaker net by ultrasonic waves

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Embodiment Construction

[0033] Referring to accompanying drawing, a kind of device of ultrasonic detection speaker net defect of the present invention is characterized in that: comprise frame 22 and the discharging module 20 that is loaded on the frame 22 successively, pulling module 25 and receiving module 24, in pulling module The middle part of 25 has ultrasonic detection support 23, and described ultrasonic detection support 23 comprises the lower fixed plate 230 that is fixed on pulling material module 25 middle parts and the upper fixed plate 233 that is hinged with lower fixed plate 230, and locking knob is arranged in the upper fixed plate 233 232 and at least one ultrasonic transmitting module fixing cavity 234 penetrating its plate surface, there are flow channels 231 in the lower fixing plate 230 and the number and position of the ultrasonic transmitting module fixing cavity 234 are adapted and penetrate its plate surface The ultrasonic receiving module fixed cavity 236, the ultrasonic tran...

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Abstract

The invention provides a device for detecting the defects of a loudspeaker net by ultrasonic waves. The device comprises a rack (22), and a material placing module (20), a material pulling module (25) and a material collecting module (24) which are arranged on the rack (22) in sequence, wherein an ultrasonic wave detection bracket (23) is arranged in the middle of the material pulling module (25). A method for detecting the defects of the loudspeaker net by the ultrasonic waves comprises nine steps: starting, sampling, filtering, smoothening, smoothening for the second time, comparing, stopping, detecting, and judging. The device and the method provided by the invention are simple and can accurately detect defective products of band materials of the loudspeaker net.

Description

【Technical field】 [0001] The invention relates to a microphone accessory, to a testing device using sound wave radiation, in particular to a device and method for ultrasonically detecting defective horn nets. [0002] devices and methods. 【Background technique】 [0003] Speaker nets are used in earpieces, speakers and other accessories of electro-acoustic equipment. Generally, dense wire mesh structures are used to meet the requirements of dustproof and waterproof without affecting the sound playback effect. Usually colorless and transparent film-type pressure-sensitive adhesive is bonded and fixed to the shell of the electro-acoustic equipment. [0004] The current production equipment for such products generally adopts flat die-cutting machines or circular knife die-cutting machines. In the process of processing, waste of colorless and transparent film-type pressure-sensitive adhesives may be leaked. The leaked waste will lead to poor sound transmission effect. The detec...

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Application Information

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IPC IPC(8): G01N29/04
Inventor 刘广群谭军
Owner 郑州领胜科技有限公司
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