What are the commonly used stranding machines?
Jul 12, 2021
Commonly used stranding machines include tubular stranding machine, Rigid Frame Strander, cage stranding machine, disc stranding machine, and fork-type stranding machine. Its production capacity varies.
Tubular stranding machine: a production equipment that completes the stranding function by the rotary motion of a tubular revolving body. The floating frame for placing each pay-off reel is installed on the axis of the slewing 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 slewing body. Generally, the tubular stranding machine has 1+ There are 6 pay-off reels, there are 1+12 pay-off reels, the tubular stranding machine is suitable for producing 7 and 19 (secondary stranding) small-size conductive cores. The cross section after stranding is different according to its model, G200 type, generally up to 35mm2, G400 type, generally up to 70mm2, and more than 70mm2 is rarely produced by tubular stranding machines.
Rigid Frame Strander: Due to the frame type structure, the central axis is not loaded by the weight of the spool, the equipment has high rigidity and strength, good overall performance and small turning radius, so the production speed is high. The frame twister cannot be twisted back. When twisting the wire, the single wire will generate internal stress due to the twisting, which causes the high-strength hard round wire to be twisted not tightly and easy to loose strands. Therefore, some frame stranding machines install a pre-deformation device in front of the stranding cage to eliminate the internal stress of the single wire. The tension control is carried out by means of mechanical friction or pneumatic etc., and the upper plate adopts electric worm wheel type quick clamping or manual hand wheel clamping. There are also those equipped with a centralized upper and lower disk device.
Cage stranding machine: Due to the very large radius of gyration and the complex structure of the untwisting device, the production speed of the cage twisting machine is limited. It can be twisted or not twisted, so it is suitable for various insulated wire cores. Good tension control can give full play to its use effect during use, and it has become a very superior mechanical equipment for making wires. And the use performance of this product has been recognized and praised by many people. , In the process of using it to give better play to its advantages, the scope of use is becoming more and more extensive, in the process of application, it can better meet the needs of use, and it has become a very common superior product in use now. .
Disc stranding machine: a production equipment that completes the twisting function by the rotation of the winch. The cantilever shaft of each pay-off reel must be installed symmetrically around the axis of the revolving winch according to certain rules, that is, on the outer circumference of the revolving winch. The axis of each pay-off reel is parallel to the axis of the revolving winch, and each pay-off reel rotates with the winch. movement. There are vertical and horizontal.
Fork stranding machine: a production equipment that completes the stranding function by the rotation of the rigid gallows. The bracket for placing each pay-off reel is fixed on the gallows and cannot float. Because the bracket of the pay-off reel is shaped like a fork, it is named. Generally there are several sections, the common ones are 3 sections and 5 sections, which are simpler than cage stranding machines and have similar production capacity, which can only be seen in large and medium-sized wire and cable factories.
