Disc type powder coating device with variable electrode diameter

Abstract

The invention discloses a disk type powder coating device with a variable electrode diameter. A lower fixed plate is mounted on a supporting frame; a guide shaft is mounted between the lower fixed plate and an upper fixed plate; the lower end of the guide shaft is fixed on the lower fixed plate; the upper fixed plate is fixed at the upper end of the guide shaft; N screw holes are formed in the same circumference of the lower fixed plate at equal intervals and matched with respective bolts respectively; blind holes, the diameters of which are the same as those of welding cores are formed in centers of the bolts; a forming sliding block is positioned between the upper fixed plate and the lower fixed plate to form a sliding pair together with the guide shaft; a screw is coaxially mounted at the centers of the upper fixed plate, the forming sliding block and the lower fixed plate to form a screw pair together with the forming sliding block; N conical charging openings are formed in holes in the same circumference of the forming sliding block at equal intervals; N welding cores penetrate through the conical charging openings respectively to be pressed between the upper fixed plate and the blind holes of the bolts. The disk type powder coating device with the variable electrode diameter, disclosed by the invention, has the advantages of simple structure, uniform and symmetric stress in the pressing and coating process, good pressing and coating quality of the electrode and small powder consumption; the manufacturing requirements for the electrodes with different welding core diameters and different coating thicknesses can be satisfied.

Description

technical field [0001] The invention relates to a powder coating device for welding rods, in particular to a disc type powder coating device with variable diameter of welding rods. Background technique [0002] At present, the production methods of welding rods include welding rod powder coating machine pressure coating method and manual rubbing method. Although the welding rod powder coating machine has good pressure coating quality and is suitable for mass production, it is bulky, expensive, and consumes a lot of powder, so it is not suitable for scientific experiments and teaching experiments with a small amount of welding rods. Therefore, the production of welding rods for scientific research and teaching generally adopts the manual rubbing method. However, manual rubbing electrodes have disadvantages such as large coating eccentricity, difficult thickness requirements, insufficient compactness, and rough surface, which not only affect the process performance and metall...

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of disc-type variable welding rod diameter powder coating device, overcome the welding rod powder coating machine pressure coating method and manual rubbing method in the background technology, which are not suitable for scientific experiments and teaching experiments or teaching experiments with less welding rod consumption. Defects needed for small batch production such as training

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