Rolled piece rolling unit mechanism, rolling curve lead steel wire and application method

Abstract

The invention discloses a rolled piece rolling unit mechanism. The rolled piece rolling unit mechanism comprises a roller support, a pin shaft, oil supply nozzles, rollers, a bearing, an oil supply passage and water supply nozzles; the roller support is a box body structure, a through groove is formed in the upper part of the roller support, and a pin shaft through hole is respectively formed in two sides of the through groove; a pin shaft fixed threaded counter bore is correspondently formed in the lower parts of the pin shaft through holes on the bottom of the roller support; the bearing is fixed on the pin shaft, the outer side of the bearing is fixed on an axial through hole of the roller, the end part of the pin shaft is provided with outer threads, the pin shaft penetrates through the pin shaft through hole and is fixed on the pin shaft fixed threaded counter bore by utilizing threads; the oil supply passage is arranged on the pin shaft, an opening is respectively formed in the positions, corresponding to the end part and the bearing fixing position of the pin shaft, of the oil supply passage, and the oil supply nozzle is arranged in the opening of the end part; a water supply threaded through hole is formed in the side wall of the roller support, and the water supply nozzle is arranged in the water supply threaded through hole; a rolling passage is formed between each pair of rollers at two sides of the through groove. The invention also discloses a rolling curve lead steel wire and an application method of the rolling curve lead steel wire.

Description

technical field [0001] The invention relates to a steel rolling technology, in particular to a rolled piece rolling unit mechanism, a rolling bend lead wire and a use method thereof. Background technique [0002] The large coil production line of our factory is one of the few coil lines in the country. Due to the "grafting" on the bar production line, affected by various factors such as technology and location, there An S-shaped curve. Due to the clamping of the 1# pinch roller of the large coil, there is a pulling force in the downstream direction of the rolled material, which in turn causes friction and sliding between the rolled piece and the lead steel pipe, resulting in scratches in the length direction of the rolled material. In this case, the S-shaped The curve performance is particularly outstanding, which has seriously restricted the improvement of the surface quality of our large coils. [0003] The prior art solution to this problem is as follows: [0004] 1. R...

AI Technical Summary

Problems solved by technology

[0004] 1. Relying on adjusting the tension of the 1# feeding roller to control the friction between the rolled material and the lead steel pipe, this method has poor stability and requires high experience level, so it is not easy to popularize

[0005] 2. Observe the friction points between the rolled material and the S-shaped curve during production, set idlers at each friction point, and add water pipe cooling to solve the scratches to a certain extent, but this method is harmful to the head of the rolled material and The stability of the torque value of the 1# pinch roller has high requirements, and it cannot happen by chance, so it is not easy to popularize and use

Images