A Roller Guide and a Method for Guiding Stock

Abstract

A roller guide (1) for guiding stock in a longitudinal feeding direction (A) toward a pair of rolls for shaping the stock. The roller guide comprises a frame arrangement (2), a pair of guide rollers (3, 4) configured to, in a closed position, engage opposite surface portions of the stock,and positioning means for adjusting a lateral distance between the guide rollers. The roller guide further comprises detection means (13) configured to detect a longitudinal position of a piece of stock (20) with respect to the guide rollers. The positioning means is configured to adjust the lateral distance between the guide rollers in response to said detection.

Description

TECHNICAL FIELD[0001]The invention relates to a roller guide for guiding stock in a longitudinal feeding direction toward a pair of rolls for shaping the stock according to the preamble of claim 1 and to a method for guiding stock according to the independent method claim. In particular, the invention relates to a roller guide and to a method for use in the production of wire, rods and beams.BACKGROUND AND PRIOR ART[0002]Roller guides are commonly used for guiding hot stock, such as wire stock or rod stock, in rolling mills. Primarily, roller guides are placed before a pair of rolls used to shape the stock, so called entry roller guides. These roller guides guide the stock which is to be rolled toward a particular rolling groove. The use of roller guides reduces the risk of damaging the stock upon entry between the pair of rolls and enables feeding the stock at high feeding rates.[0003]U.S. Pat. No. 3,935,722 discloses a roller guide for guiding stock toward a pair of rolls. The rol...

AI Technical Summary

Benefits of technology

The present invention relates to a roller guide for a machine that reduces the forces applied to its guide rollers, thereby increasing their tool life. This is achieved by a roller guide that includes detection means to detect the position of a piece of stock and adjust the lateral distance between the guide rollers accordingly. Additionally, the guide rollers can be moved between a closed position and an open position to control the forces exerted by the stock on the guide rollers.

Problems solved by technology

However, a problem with such known roller guides is that the guide rollers are heavily worn due to the large forces resulting when the stock enters between the guide rollers.

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