Electromagnetic damping adjustable slip ring and slip shaft system

Abstract

The slip ring comprises an inner transmission shaft, and a paper tube fixing assembly and a magnetic transmission assembly which are independent of each other are arranged on the outer surface of the inner transmission shaft; the magnetic transmission assembly comprises a transmission ring and an electromagnetic system used for generating electromagnetic force to drive the paper tube fixing assembly to rotate, the transmission ring is fixedly connected with the inner transmission shaft, the electromagnetic system comprises magnetic powder, and a second space used for containing the magnetic powder is formed in the transmission ring. The transmission ring is provided with an electromagnetic damping adjusting assembly used for adjusting the size of the second space gap. The invention further provides a slip shaft system with adjustable electromagnetic damping. According to the slip frequency ring with the adjustable electromagnetic damping and the slip frequency shaft system, the electromagnetic damping adjusting assembly is arranged in the slip frequency ring, mechanical adjustment of electromagnetic torque generated by a single slip frequency ring can be achieved, when a plurality of slip frequency rings are arranged in series, the same wire is adopted to supply power to an electromagnetic system, and the structure is simpler and more practical.

Description

technical field [0001] The invention belongs to the field of film winding equipment, in particular to a slip ring and a slip shaft system. Background technique [0002] During the use of the slitter, it involves the unwinding and winding process. The unwinding is to unroll the large-sized coil material through rotating motion; the coil material bypasses the traction roller and idler roller of the slitter and is cut into small coil materials by the cutter; ) is rewound through the winding motion to complete the production process. In order to ensure the production quality, it is necessary to ensure that the surface tension of the film is stable during the slitting process. In actual production, a slip shaft is often used for winding. A slip ring is installed on the shaft core of the slip shaft, and the winding paper drum and the slip ring are fixedly connected by certain means to realize synchronous rotation, and the film is wound on the paper drum to realize winding. The ...

AI Technical Summary

Problems solved by technology

However, in the above patents, one slip ring needs one current to control. In actual production, multiple slip rings are usually used in series. Multiple slip rings require multiple currents. The brush structure used for power supply needs to be based on the The number of slip rings is individually customized, too many slip rings will cause the structure of the brush to be bloated, and the number of wires is also very large

In addition to the huge power supply structure, controlling the slip ring through the current will occupy the interface of the programmable logic controller (PLC) too much, resulting in a waste of PLC resources

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