Commonly used stranding machines include pipe stranding machines, rigid frame stranding machines, cage stranding machines, disc stranding machines, fork stranding machines, etc., and their production capacities vary.
Pipe stranding machine: a production equipment that completes the stranding function through the rotary motion of the pipe revolving body. A floating frame for placing each pay-off reel is mounted on the shaft of the rotating body. Due to the pay-off drive, the floating frame only swings and does not rotate. The wire take-up device is installed outside the rotating body. Pipe stranding machines generally have 1+6 pay-off reels and 1+12 pay-off reels. The pipe stranding machine is suitable for producing 7, 19 (secondary stranding) small-sized conductive core wires. The cross section after stranding varies according to the model, G200 type, generally up to 35mm2, G400 type, generally up to 70mm2, and pipe stranding machines above 70mm2 are rarely produced.
Rigid frame type stranding machine: Due to the frame type structure, the central shaft is not subject to the self-weight load of the spool, the equipment has high rigidity and strength, good comprehensive performance, small turning radius and fast production speed. The frame twister cannot be twisted back. When twisting, the single-strand wire will generate internal stress due to the twisting, resulting in the loose twist of the high-strength round wire. Therefore, some frame type stranding machines install a pre-deformation device in front of the stranding cage to eliminate the internal stress of the single strand. The tension control adopts mechanical friction or pneumatic method, and the upper plate adopts electric worm gear type quick clamping or manual hand wheel clamping. There is also a centralized loading and unloading disk device.
Cage type stranding machine: Due to the large turning radius and the complex structure of the untwisting device, the production speed of the cage type stranding machine is limited. Can be twisted or not twisted, suitable for all kinds of insulated cores. Good tension control can give full play to its use effect during use, and become a very superior wire-making machinery and equipment. And the performance of this product has been recognized and praised by many people. , in the process of use, to better play its advantages, the scope of use is more and more extensive, and it can better meet the needs of use in the process of application, and it has become a very common high-quality product in use now. .
Disc stranding machine: The production equipment that completes the stranding function through the rotation of the capstan. The cantilever shaft of each pay-off reel must be installed symmetrically around the axis of the rotary winch according to certain rules, that is, on the outer circumference of the rotary winch. The axis of each pay-off reel is parallel to the axis of the rotating winch, and each pay-off reel rotates with the winch. move. There are vertical and horizontal.
Fork type stranding machine: The production equipment that completes the stranding function through the rotation of the rigid gallows. The bracket on which each pay-off reel is placed is fixed on the gallows and cannot be floated. Because the pay-off wheel bracket is in the shape of a fork, it is named. Generally, there are several sections, and the common ones are 3 sections and 5 sections, which are simpler than the cage type stranding machine and have similar production capacity. Only large and medium-sized wire and cable factories can see it.
