Wiring cutter head, method for preparing electric smelting pipe fitting by using wiring cutter head and obtained wire exposed type electric smelting pipe fitting

Abstract

The invention discloses a wiring cutter head. The wiring cutter head comprises a cutter body, wherein a cutter point is arranged on one side of the cutter body; the lower part of the cuter point is a cutter setting surface; the vertical distance between the front side of the cutter setting surface and the point end of the cutter point is 0.1 mm; one end of the cutter setting surface is a diagonal cutting surface inclined towards the direction of the cutter point. The invention further discloses a method for preparing a wire exposed type electric smelting pipe fitting and the obtained electric smelting pipe fitting; the method comprises turning and wiring steps. The thickness of the cutter setting surface is added, the vertical distance between the front side of the cutter setting surface and the cutter point of the cutter head is shortened, the copper wire arrangement depth is shortened, the diagonal cutting surface is arranged on the cutter setting surface, and one side flange is compressed but another side flange is not pressed when the cutter setting surface is used for grinding a copper wire, so that the firmness of the copper wire is guaranteed, a part of the copper wire is exposed outside the inner surface of a plastic pipe fitting and is in good contact with the pipe fitting, the process is realized through the cooperation with a corresponding technology, and the obtained wire exposed type electric smelting pipe fitting is reasonable in copper wire arrangement, firm in the copper wire and small in ellipticity.

Description

technical field [0001] The invention relates to a wiring cutter head, a method of using the wiring cutter head to prepare exposed-wire type electric fusion pipe fittings and the obtained exposed-wire type electric fusion pipe fittings. Background technique [0002] The wiring cutter head used by the non-exposed electric fusion pipe fittings is the original factory wiring cutter head equipped with the wiring machine. The wiring cutter head is as follows: figure 1 , 2 , 3 shows: the horizontal distance d between the tool point 12 and the tool setting surface 13 is 1.5mm, the distance is long, resulting in a deep wiring depth of the tool head, and the effect of exposed lines cannot be achieved. Whether it is adjusting the program or adjusting the tool setting point, It is impossible to produce exposed wire electrofusion pipe fittings. The only way to produce exposed wire electrofused pipe fittings is to finish the last process and increase the cutting depth to make it reach th...

AI Technical Summary

Problems solved by technology

[0002] The wiring cutter head used by the non-exposed electric fusion pipe fittings is the original factory wiring cutter head equipped with the wiring machine. The wiring cutter head is as follows: figure 1 , 2 , 3 shows: the horizontal distance d between the tool point 12 and the tool setting surface 13 is 1.5mm, the distance is long, resulting in a deep wiring depth of the tool head, and the effect of exposed lines cannot be achieved. Whether it is adjusting the program or adjusting the tool setting point, It is impossible to produce exposed wire electrofusion pipe fittings. The only way to produce exposed wire electrofused pipe fittings is to finish the last process and increase the cutting depth to make it reach the exposed wire point. However, this method will cause copper wires to be fused The turning tool cuts off a part, and the resistance value becomes smaller. When the voltage remains the same, the current increases, causing the copper wire to burn and the welding to fail.

At present, the open-wire electrofusion pipe fittings on the market are all one-time injection molding, and there are two problems: 1. The resistance wire is exposed more, and about 2 / 3 of the diameter of the resistance wire is higher than the inner surface of the pipe fitting, and it is easy to fall off; 2. Because it is One-time injection molding, large ellipse

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