One-off fine-drawing method and device for metal tube

Abstract

The invention discloses a one-off fine-drawing method for a metal tube. The one-off fine-drawing method comprises the following steps: 1), producing a metal tube to be subjected to fine-drawn; 2), arranging a fine-drawing device; 3), carrying one-off multiple fine-drawing to the metal tube to be subjected to fine-drawn by adopting the fine-drawing device; 4), arranging an annealing device to carry out annealing treatment on the drawn metal tube in the step 3); 5), arranging a secondary fine-drawing device for further carrying out one-off multiple fine-drawing on the annealed metal tube in the step 4); and 6), arranging a material collecting device to collect the fine-drawn metal tube finished product. The invention further discloses an one-off fine-drawing device for the metal tube applying the method. According to the one-off fine-drawing method and the one-off fine-drawing device provided by the invention, a plurality of fine-drawing processes are integrated to a device, so that high-efficiency and high-quality one-off fine-drawing of the metal tube is achieved to automatically produce a metal tube which is of any length and has outer diameter roughness of 0.1 mm to 4.0 mm. Besides, while the production efficiency is improved, the reduction of the production cost is doubled or multiplied.

Description

technical field [0001] The invention relates to a metal tube thinning technology, in particular to a metal tube one-time thinning method and metal tube one-time thinning equipment implementing the method. Background technique [0002] The traditional metal tube thinning method adopts one machine and one mold, that is, a machine and a mold must be replaced for each thinning process. The metal tube thinning equipment used in the traditional metal tube thinning method uses a motor to drive the casting turntable to rotate, and then pulls the metal tube through the thinning mold to achieve the thinning effect; it can only be drawn once at a time. If you want to further thin the process, you need to move the drawn metal tube to another equipment and use a new mold for thinning, which is very time-consuming and labor-intensive. Using the traditional metal tube thinning method, it takes about 7 processes to thin a 2mm metal tube to 1mm, that is, 7 machines and 7 sets of molds are r...

AI Technical Summary

Problems solved by technology

The metal tube thinning equipment used in the traditional metal tube thinning method uses a motor to drive the casting turntable to rotate, and then pulls the metal tube through the thinning mold to achieve the thinning effect; it can only be drawn once at a time. If you want to further thin the process, you need to move the drawn metal tube to another equipment and use a new mold for thinning, which is very time-consuming and labor-intensive

Using the traditional metal tube thinning method, it takes about 7 processes to thin a 2mm metal tube to 1mm, that is, 7 machines and 7 sets of molds are required to work, and each 0.1mm thinner down will cost about One more process is added; it can be seen that the traditional tube drawing method has complex and cumbersome processes, a large demand for equipment and labor, low production efficiency, and high production costs, which greatly restrict the thinning of metal tubes.

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