Powder particle motion state online detection device and method
A technology of powder particles and moving state, which is applied in the directions of measuring devices, transportation and packaging, individual particle analysis, etc., which can solve the problems of unrealistic detection and achieve the effects of high precision, good integration and convenient operation
Inactive Publication Date: 2020-08-25
DALIAN UNIV OF TECH
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The above method detects the entire powder particle group when detecting powder particles, so if the concentration of powder particles in the pipeline is high, high-precision detection cannot be achieved
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[0036] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0037] like figure 1 As shown, this patent discloses an online detection device and method for the motion state of powder particles, which is mainly used for online real-time detection and dynamic control of powder particles; the detection device includes an air source 1, a gas flow meter 2, a powder feeder 3, Main conveying pipeline 6 , powder detection box 9 , high-speed camera 10 , light source 11 , computer 13 and microcontroller 14 .
[0038] like figure 1 As shown in the figure, the online detection device for the movement state of powder particles adopts pneumatic conveying of powder particles. The main conveying pipeline 6 is an L-shaped structure, including a horizontal pipeline part and a vertical pipeline part. The conveying pipeline is a highly transparent PVC circular plastic pipe. The powder particles in the pipeline are finally transported in a suspen...
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The invention discloses a powder particle motion state online detection device and method, and belongs to the technical field of powder conveying and detection of laser repair metal surface defect devices. The powder particle motion state online detection device adopts a vertically arranged conveying pipeline, realizes suspension conveying of powder particles in a pneumatic conveying mode, and comprises an air source, a gas flow meter, a powder feeder, a main conveying pipeline, a powder detection box, a high-speed camera, a light source, a computer and a single chip microcomputer controller.The invention relates to a PVC (polyvinyl chloride) plastic pipeline. Powder particles are conveyed through force, through the structural design of the Y-shaped pipeline and the reducing pipeline, itis convenient to achieve detection and later image processing analysis of the powder particles through the high-speed camera, finally, the computer adjusts the rotating speed of the stepping motor through the control controller to control the powder outlet amount, and the purpose of dynamic control over the powder particles is achieved. The device is good in integration degree, high in precision,high in adaptability, convenient to operate and capable of quickly detecting real-time state information of powder particles in the powder conveying pipeline.
Description
technical field [0001] The invention belongs to the technical field of powder delivery and detection of a laser repairing metal surface defect device, and relates to an online detection device and method for the movement state of powder particles. Background technique [0002] During the long-term use of metal parts, surface defects such as cracks will occur due to the action of uneven loads such as external alternating stress. If these metal workpieces with microcrack defects continue to be used, the mechanical properties of the equipment will be reduced, and even breakage will occur, causing major safety accidents. Therefore, timely repair of some core equipment with surface defects such as microcracks and high value-added equipment can prolong product life and save materials. [0003] Laser repair technology uses high-power laser beams to form a cladding layer on the surface of defective metals to repair metal surface defects. The powder particle delivery and detection ...
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IPC IPC(8): G01N15/06G01N15/14C23C24/10B65G53/52B65G53/56B65G53/66
CPCG01N15/06G01N15/1404C23C24/103B65G53/52B65G53/56B65G53/66G01N2015/1486B65G2201/04G01N15/075
Inventor 蒋玮马书泽
Owner DALIAN UNIV OF TECH