Dislocation wire lap joint point device

Abstract

The invention discloses a dislocation wire lap joint point device which comprises at least two single-section roller units, wherein each single-section roller unit comprises at least one group of roller units, transmission motors and other conveying rollers; each roller unit comprises transmission chains, uniform speed chain wheel groups, a variable speed chain wheel group and at least three rollers. When the dislocation wire lap joint point device is used, a wire material which is spirally coiled and spread by using a wire feeding machine is conveyed through the roller units, and as variable speed chain wheel transmission and uniform speed chain wheel transmission are available among the rollers, lap joint points of the wire material coil can be displaced because of the speed difference of each two adjacent roller units when the wire material passes through the roller units. Continuous transportation of a whole air cooling roller bed can be achieved through the plurality of roller units, so that the lap joint points can be frequently continuously or repeatedly displaced, the wire material can be frequently cooled through air cooling, the cooling speed and the temperature of the whole coil of wire material can be relatively uniform, a product with relatively uniform structure property can be obtained, the problem that the same coil of wire material is large in strength fluctuation is solved, and the strength of the lap joint of the wire material is improved.

Description

technical field [0001] The invention relates to the technical field of steel rolling equipment, and more specifically relates to a device for shifting overlapping points of wire rods. Background technique [0002] After rolling in the high-speed wire rod production line, the wire rod needs to be coiled by the laying machine, and then laid flat on the conveying roller table to be transported to the collection area. At this time, the wire structure has not yet reached the final structure, and the wire rod at this stage needs to be cooled. [0003] The traditional Stelmore control wire rod cooling uses an array of fans under the roller table to forcibly cool the wire rod. By changing the number of fans, the air volume distribution of each fan and the running speed of the roller table, the cooling intensity of the wire rod is adjusted, so that the wire rods of different steel types and diameters can obtain the required structure and performance. However, after the wire is coil...

AI Technical Summary

Problems solved by technology

"Jialing device" is a device for distributing the cooling air, distributing more air volume to both sides of the roller table, that is, the edge of the wire and the position where the overlapping points are dense; or by spraying water mist on the overlapping points Accelerated cooling, but as long as there is no misalignment or little misalignment at the overlapping points, there will be a difference in cooling rate, which will cause large fluctuations in the structure and properties of the final wire rod, and the strength difference between the overlapping point and the non-lapping point can reach 12- 15Mpa, or even 20-25Mpa, the higher the rolling speed, the denser the wire rod, the thicker the wire rod diameter, the greater the strength difference will be, and if the water spray method is used, the wire rod will be rusted, which will further seriously affect the quality

Images