A production line for plastic-coated metal strips

Abstract

The invention relates to a plastic-coated metal strip production line, which relates to the technical field of plastic-coating production, which includes an unwinding unit, a plastic-coating unit, a cooling unit, and a winding unit. The extrusion head of the plastic-coating unit is provided with two extrusion ports , also includes a thermal fusion unit sequentially arranged between the first cooling unit and the winding unit, the thermal fusion unit is provided with a thermal fusion plate and a guide wheel set, and the thermal fusion plate is used for the two extruded semi-circular plastic materials The opposite sides are hot-melted, and the guide wheel set includes two limit guide wheels. The opposite sides of the two semi-annular plastic materials are hot-melted and passed between the two limit guide wheels. When the two semi-annular When the plastic material passes between the two limit guide wheels, the opposite sides of the two semi-annular plastic materials will stick together, and the metal strip unwound by the unwinding unit is located between the two semi-annular plastic materials; The invention has the effect of ensuring the wall thickness of the plastic material.

Description

technical field [0001] The invention relates to the technical field of plastic-coating production, in particular to a production line for plastic-coated metal strips. Background technique [0002] Plastic-coated wire with a sheath-core structure, these wires are made of a metal strip (wire or metal strip) covered with a layer of plastic, because of the characteristics of the surface-coated plastic material, different effects can be achieved , in recent years, from industrial use to household use, and then to wearable use, its use is becoming more and more extensive, and the market demand is increasing. [0003] Existing technology such as application publication number is a kind of production line disclosed by the Chinese patent of CN109877000A, comprising yarn creel, lead frame, extruder unit, caliper, circulating cooling water tank, drier, haul-off machine, collecting A thread unit and a control cabinet, wherein at least two coils of silk thread to be coated are wound on ...

AI Technical Summary

Problems solved by technology

[0008] However, the part of the metal strip (wire or metal strip) between the unwinding unit and the cooling unit is suspended, even if the metal strip (wire or metal strip) will contact the plastic material when passing through the overmolding unit, but The plastic material located in the overmolding unit is in a molten state and has poor stability, so the metal strip (wire or metal belt) cannot be effectively supported, and the metal strip (wire or metal belt) is being conveyed in the air, because If the tension and stretching are far away, the metal strip (wire or metal strip) will vibrate, causing the plastic material covered on the surface of the metal strip (wire or metal strip) to be squeezed. When it is large, the plastic material coated on the surface of the metal strip will even have thin-walled features, so it needs to be improved

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