Pay-off frame for ultrathin guide line

Abstract

The invention relates to a pay-off frame for an ultrathin guide line. The pay-off frame comprises a base, a main pay-off shaft, a traction guide roller and a tension spring adjusting mechanism, wherein a rotary tray capable of rotating axially by surrounding the main pay-off shaft is arranged at the lower part of the main pay-off shaft; the tension spring adjusting mechanism comprises an adjusting tray, a fixing plate and a tension spring connected between the adjusting tray and the fixing plate; and the adjusting tray is also provided with a friction wheel capable of rubbing and contacting the edge of the rotary tray, and the traction guide roller is arranged on the adjusting tray. When the pay-off speed is normal, the friction wheel props against the edge of the rotary tray so as to provide friction force and pressure to the rotary tray; when the pay-off speed is increased, the tension force of the ultrathin guide line on the traction guide roller is increased, so that the traction guide roller drives the adjusting tray to overcome the tension force of the tension spring, so that the moving tendency of the adjusting tray far away from the rotary tray is increased, the friction force and the pressure of the friction wheel to the rotary tray are reduced, furthermore, the pay-off speed of the ultrathin guide line is increased, the pay-off tension force falls back so as to be kept stable. According to the pay-off frame, the tension force is balanced and the line is not easy to break in the pay-off process.

Description

technical field [0001] The invention relates to cable production equipment, in particular to a pay-off frame 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. During the processing such as stranding of such ultra-fine wires, it is necessary to use a pay-off rack, and a plurality of ultra-fine wires are simultaneously released by the pay-off rack and twisted into twisted wires by a stranding machine. The existing pay-off racks for making stranded wires are generally controlled by a motor to pull the wires to pay out. Such ultra-fine wires with a diameter of less than 0.03 mm will ...

AI Technical Summary

Problems solved by technology

The existing pay-off racks for making stranded wires are generally controlled by a motor to pull the wires to pay out. Such ultra-fine wires 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 pulling speed of the motor pulling the wire becomes faster or slower, due to the rapid change of the tension of the wire, it is very easy to cause wire breakage during the wire release, which will reduce the quality and pass rate of the stranded wire, and even affect the progress of production.

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