Tension linear drawing machine

Abstract

The invention relates to a mechanical device used for manufacturing cored wire drawing, in particular to a tension linear drawing machine which comprises a worktable, a take-up machine, a plurality of wire drawing dies and a plurality of electric speed regulating conical drums. Every wire drawing die is provided with a diameter reducing hole. A solid lubricating vessel is arranged on a wire entrance end of every wire drawing die. Based on a central line of the diameter reducing hole, the wire drawing dies are successively arranged and fixed on the worktable. The electric speed regulating drums are arranged between the wire drawing dies. After penetrating the wire drawing dies, wires wind the electric speed regulating conical drums for a plurality of circles and enter the next group of thewire drawing dies until finished wire products are cut off into discs. The invention aims at designing the tension linear drawing machine which is characterized in that the cored wires can not fracture easily during the radial contracting wire drawing process and the cored wire filling is uniform and compact. Compared with the prior art, the mechanical device has no phenomena of wire breaking, contraction, torsion, and the like and has the advantages of high production ability, good molding effect, etc.

Description

technical field [0001] The invention relates to a mechanical device for manufacturing powder core wire drawing, in particular to a tension type linear wire drawing 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 processed and manufactured with a special wrapping machine an...

AI Technical Summary

Problems solved by technology

However, there are still some problems in the processing of powder core wire, especially the drawing process.

When the powder core wire is made, the powder core wire needs to be drawn after the wrapping process is completed. At this time, the core powder of the wire is in a loose state, and the outer skin material has good ductility, so that it can be used in the drawing process. During the process, it is very easy to cause radial shrinkage or fracture due to uneven force; the outer sheath is still in a state of incomplete closure, and the irregular direction such as the inversion of the wire will affect the filling effect of the powder in the core of the wire; at the same time, the powder core wire The heat treatment process cannot be used in the production process of the material, otherwise the wire will be prone to uneven and unstable force, and it will also be easy to break the wire

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