Back Twist Pair Twisting Machine for Four Cores Rotating Single Pitch Automotive Data Cable

When ground wires are added to two or more signal wire cores for twisting with free internal stress back twist pays off, and when metal or non-metallic tape materials are added for center rotating wrapping or longitudinal wrapping, it is usually recommended to use a single twisting method. Compared with double twisting method, the single twisting method has lower production efficiency, but it can obtain better physical appearance and electrical performance of tape wrapping quality. This machine is specially designed for the production line of free internal stress back twist payoff + ground wire filling + tape wrapping shielding + pair twisting. The whole line includes the back twist payoff part, center rotating wrapping or longitudinal wrapping parts, and the single twisting part. Each part operates synchronously through mechanical and electrical interlock control, thereby achieving stepless high-precision electronic pitch control. The pitch accuracy is close to the first decimal place and can be set digitally while maintaining stable and accurate. The back twist pay-off part is of a horizontal frame rotating structure. The rotation of the frame body drives the frame to rotate and form a single-pitch back-twisting. The back-twisting rate can be set arbitrarily from 0 to 100%. The single-twist take-up part has a rotary ring structure, and the motor drives the rotary ring to rotate to drive the wire to rotate and twist at the wire collector plate to form a single twist. The twisted wires can be center rotating wrapped or longitudinal wrapped simultaneously to achieve external shielding of the wires. Using the back twisting method, the traditional passive rotational and external twisting forced is transformed into the active rotational twisting of two or more core wires under the combined action of back twisting and the twisting force. The internal stress of torsion and the external stress of twisting cancel each other out, so that the rotational stress of the twisted product from the inside to the outside cancels each other out to zero or close to zero (depending on the back twisting rate). The two core wires after twisting are in close contact with no gaps and are naturally straight with no rebounding force. The maintaining a stable physical structure can reputable to stable electrical performance. The take-up reel adopts a servo motion controller in a shaft arrangement structure, which does not damage the wire and makes the arrangement precise and beautiful.