A powder delivery system for a portable laser repair device
A technology of laser repair and conveying system, which is applied in the coating process and coating of metal materials, can solve the problems of poor conveying effect, limited processing position and complicated structure of a small amount of fine-grained powder, so as to ensure the utilization efficiency of powder and facilitate the movement , small size effect
Inactive Publication Date: 2019-08-13
DALIAN UNIV OF TECH
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Problems solved by technology
[0004] The invention provides a small metal powder conveying system, which mainly solves the problem that the existing metal powder conveying system is complex in structure, large in size, limited by the processing position, and poor in conveying a small amount of fine-grained powder; it can be installed together with the laser emitting part , especially suitable for mobile transportation of a small amount of fine-grained powder
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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] Such as Figure 1-2 As shown, the powder conveying system of the portable laser repair device provided by the present invention adopts the pneumatic conveying method (based on the principle of pneumatic conveying) to realize the non-contact powder supply, adopts the straight line and horizontal arrangement method, and connects the small speed-regulating air pump 1 successively by the cylindrical conveying pipeline , Airflow guide pipe 2, powder feeder, photoelectric detection sensor 9, main fluid delivery pipeline 10, Y-shaped shunt pipeline 11, coaxial powder feeding nozzle 12. Wherein, the powder feeder includes a small speed-regulating motor 3 , an upper casing 4 of the powder feeder, a screw conveying shaft 5 , a vent plug 6 , a stirring body 7 , and a lower casing 8 for powder feeding. The powder feeder shell is composed of a cylindrical powder feeder uppe...
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The invention relates to a powder conveying system for a portable laser repairing device and belongs to the technical field of powder conveying in the laser repairing process of surface cracks on metal pieces. The powder conveying system comprises four parts: a speed-governing air pump, a powder feeder, a photoelectric detection sensor and a coaxial powder-feeding nozzle, which are successively connected through a horizontally arranged cylindrical pipeline; a pneumatic conveying mode is adopted by the system; a controllable airflow is generated by an air source, is fed into a main conveying pipeline through an airflow guide pipe, forms a Venturi structure at an outlet of the powder feeder and drives the powder outputted by the powder feeder to flow and form gaseous and solid two-phase fluids; the powder is conveyed to a processing area by the coaxial powder-feeding nozzle; the photoelectric detection sensor is placed on the main conveying pipeline; the revolving speed of the screw shaft and the powder-feeding volume can be adjusted according to the practical working conditions and measured value. The powder conveying system for the portable laser repairing device is capable of realizing the stable controllability of powder conveying; the output fluid has a better converging state; the system has a small volume and a compact structure, is capable of avoiding the limitation of processing condition and position and is especially suitable for the powder-moving supply occasion under the conditions of small powder quantity and multi-station.
Description
technical field [0001] The invention belongs to the technical field of powder delivery for laser repair devices for surface cracks on metal parts, and relates to a small metal powder delivery system, in particular to a portable laser repair device powder delivery system. Background technique [0002] For various cracks on the surface of metal parts during processing or use, use high-energy laser beams to heat the cracked area, and add powder to the heated area at the same time to achieve a good repair effect, so the reliable delivery of powder is very important. Under non-contact processing conditions, the conveying system based on the pneumatic conveying method has good applicability, and the powder can be kept clean during the conveying process. The main components of the powder feeder, the detection control, and the conveying nozzle jointly determine the conveying of the fluid. Effect. At present, powder feeders are designed based on the principles of scraper type, screw...
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IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 蒋玮邵志龙吴国强杨晓臣马书泽吴兵
Owner DALIAN UNIV OF TECH