Aluminum conductor compression device for manufacturing insulated cable

Abstract

The invention discloses an aluminum conductor compression device for manufacturing an insulated cable, which comprises a doubling die, a horizontal compression roller, a vertical compression roller, a compression drawing die and a silicone oil dropping device, wherein the doubling die, the horizontal compression roller, the vertical compression roller and the compression drawing die are arranged on the outer surface of an outer aluminum monofilament in sequence from left to right, and the silicone oil dropping device is arranged above the compression drawing die and provided with an infusion tube. According to the aluminum conductor compression device, a traditional mode that a single compression roller device is used for compression or a single compression drawing die device is used for compressing a circle is broken, and the compression roller device and the compression drawing die device are effectively matched to be used. Silicone oil is tasteless and nontoxic and can perform a certain lubricating and cooling effect on compression and drawing, aluminum chips are greatly reduced, extrusion is not affected, a produced conductor core is round and only has a small quantity of aluminum chips, the electrical property of the cable is not affected, and the insulating property of the cable is improved. The aluminum conductor compression device is suitable for products such as low-voltage cables, 10 kV crosslinked cables, overhead insulated conducting wires, low-voltage flame-retardant cables, 10 kV flame-retardant crosslinked cables and the like.

Description

technical field [0001] The invention relates to the field of wire and cable conductor processing, in particular to an aluminum conductor pressing device for manufacturing insulated cables. Background technique [0002] There are currently two types of circular pressing devices for stranded aluminum conductors of wires and cables. One is the pressing roller device, which is generally carried out by two pairs of pressing rollers. The first is horizontal pressing, the second is vertical pressing, the third is horizontal pressing, and the fourth is vertical pressing (the third and above are required for large sections). The disadvantage of this kind of device is that the pressed core has ovality, sometimes has edges and corners, and the surface roundness is poor, which affects the electrical performance of the cable and increases the possibility of cable breakdown. The other is the compression die device. Compared with the wire core produced by the pressing roller, the advantag...

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Problems solved by technology

The disadvantage of this kind of device is that the pressed wire core has ellipticity, sometimes has edges and corners, and the surface roundness is poor, which affects the electrical properties of the cable and increases the possibility of cable breakdown.

The other is the pressing and drawing device. Compared with the wire core produced by the pressing roller, the advantage of this method is that the roundness of the produced wire core is good, and the operator is not required to adjust the mold. The skill requirements for the operator are not high. It is very high. Most manufacturers use this device at present, but the disadvantage is that there are a lot of aluminum scraps produced in the core. The accumulation of aluminum scraps during extrusion will cause insulation wrapping and breakdown, which will affect the electrical properties of the cable.

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