Pay-off apparatus for superfine wires

Abstract

The invention relates to a pay-off apparatus for superfine wires, which comprises a plurality of pay-off stands, wherein each pay-off stand comprises a base, a pay-off spindle, a traction guide roller and a tension spring adjusting mechanism, wherein the lower part of the pay-off spindle is provided with a rotating tray which can rotate around the axial direction of the pay-off spindle; the tension spring adjusting mechanism comprises an adjusting disc, a fixed plate and a tension spring connected between the adjusting disc and the fixed plate; and the adjusting disc is also provided with a friction wheel which is in friction contact with the rotating tray, and the traction guide roller is arranged on the adjusting disc. In general, the rotating tray overcomes the friction force and pressure of the friction wheel and then carries out wire pay-off normally; when the pay-off speed increases, the tensile force of a superfine wire on the traction guide roller increases firstly so as to drive the adjusting disc to have a trend that the tensile force of the tension spring is overcome and the adjusting disc is away from the rotating tray, so that the friction force and pressure between the friction wheel and the rotating tray are reduced, and the pay-off speed of the superfine wire increases; and finally, the pay-off tensile force falls back and keeps stable. By using the pay-off apparatus disclosed by the invention, the tensile force in a pay-off process is balanced, and a situation of wire breakage is not easily caused.

Description

technical field [0001] The invention relates to a cable production equipment, in particular to a pay-off device for ultra-fine wires. Background technique [0002] With the rapid development of household appliances and electronic communication industries, electronic products such as computers and mobile phones have been widely used. Silver plating, tin plating or pure copper are often used in such electronic products and other chips such as medical precision instruments. Ultra-fine wires made of materials, their wire diameter is generally less than 0.03 mm. This kind of ultra-fine wire needs to use a pay-off device during the processing process such as stranding, which generally includes a plurality of pay-off frames. Twisted into strands. Existing pay-off racks are generally controlled by a motor to pull the wire to pay out. This kind of ultra-fine wire with a diameter of less than 0.03 mm will inevitably break when paying out, especially when the motor starts and stops i...

AI Technical Summary

Problems solved by technology

Existing pay-off racks are generally controlled by a motor to pull the wire to pay out. This kind of ultra-fine wire with a diameter of less than 0.03 mm will inevitably break when paying out, especially when the motor starts and stops instantly, and when the motor pulls the wire. When the pulling speed becomes faster or slower, due to the rapid change of the tension of the pay-off, it is very easy to cause breakage during pay-off, which will reduce the quality and pass rate of the stranded wire, and even affect the progress of production.

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