Rolling/drawing type laminated opening wire coating machine

Abstract

The invention relates to a wire wrapping machine of powder cored wires used for arc spraying and surfacing, in particular to a rolling / pulling-typed superposed wire wrapping machine; the wire wrapping machine comprises a damping-typed belt-arranging mechanism, a rolling device, a powder feeding device and a folding device; wherein, the rolling device consists of a locating wheel, a pre-rolling wheel, a forming rolling wheel and a shaping rolling wheel; the powder feeding device is arranged between the rolling device and the folding device and consists of a powder feeding funnel and a conveyerbelt; the folding device consists of a superposed rolling wheel, a sealed rolling wheel and a compacting rolling wheel; in the upper concave wheel of the superposed rolling wheel, the concave trough of the upper concave trough consists of two concave troughs of different depths. The invention aims at designing the rolling / pulling-typed superposed wire wrapping machine which can convey the powder uniformly, wrap the powder compactly and lead the steel belt to be formed correctly. Compared with the prior art, the wire wrapping machine has the advantages of uniform belt-arranging speed, high filling rate, high compactness of the powder core, capability of preventing the powder of the powder cored wires from leaking or being affected by moisture after forming a disc, and the like.

Description

technical field [0001] The invention relates to a wire wrapping machine for manufacturing powder core wire materials for arc spraying and surfacing welding, in particular to a rolling and drawing type lapping wire wrapping machine. Background technique [0002] Arc spraying technology is popular because of its easy operation, low cost, and high efficiency, but usually only materials with high plasticity, good toughness, low hardness, and low work hardening ability can be made into wires for arc spraying, which greatly restricts This limits the selection of materials and also limits the improvement of coating protection performance. The improved method is to use powder core wire structure, choose flexible metal strip as the skin material, and use high hardness, high oxidation resistance and corrosion resistance intermetallic compound, ceramic and cermet powder as the core powder material. [0003] Due to the particularity of the structure, the powder core wire needs to be pr...

AI Technical Summary

Problems solved by technology

The existing powder core wire wrapping machine has poor powder wrapping ability (low filling rate), uneven and compact powder wrapping, which not only causes empty powder and powder leakage, but also often causes bursting problems during spraying. As a result, the The alloy composition of the sprayed layer does not meet the requirements; the main reasons for the above problems are: the belt unwinding machine is too fast and there is belt silt phenomenon, the structure of each group of rolling wheels is complicated, it is difficult to adjust the positioning, and the surface of the wheels is severely worn, which causes the gap to be too large and the steel belt Improper and unsatisfactory forming and closing. The mismatch between the powder feeding speed and the rolling wheel speed causes uneven powder feeding. The mismatch between the wrapping machine and the wire drawing machine speed results in broken wires. The type and thickness of the strip and core powder materials, It is difficult to manufacture various types of powder core wire due to high requirements on width and particle size

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