SU1475751A1 - Guiding and supporting device for stand of rollers - Google Patents

Description

The invention relates to rolling production, namely the design of the roller reinforcement stands for rolling profiles of variable cross-section. The invention can most effectively be used in rolling blades of fichtovalny weapons. The purpose of the invention is the expansion of technological capabilities by rolling profiles of variable length along the section in the rolls of variable radius. The support 3 and guide rollers 2 are mounted on levers 4 and 5, one of which is spring-loaded. This allows roller reinforcement in the form of rollers to monitor both the change in the radius of the rolls and the change in the size of the profile. The workpiece is held firmly in the guide rollers 2. 2.il.

FIG. /

1475751

one

2

The invention relates to rolling production, namely, the design of the roller reinforcement stands for rolling profiles of variable cross section and can most effectively be used when rolling blades fencing weapons.

The aim of the invention is the expansion of technological capabilities by rolling profiles of variable length along the section in the rolls of variable radius.

FIG. 1 shows the device, a general view; in fig. 2 is a view A of FIG. one.

The device comprises a housing 1, guides 2 and intermediate 3 rollers mounted respectively on levers 4 and 5. Levers 4 and 5 are mounted on an axis 6 fixed in housing 1. A spring 7 is installed between housing 1 and lever 4. Roller 3 contacts roller 2 and roll 8 cages.

The device works as follows.

The drive of the rolling stand (not shown), which drives the work rolls 8, intermediate 3 and guide rollers 2, turns on. When the radius' of the rolls 8 changes, the intermediate rollers 3 act on the guide rollers 2 and move them in accordance with the change of the roll radius, the levers 4 and 5 with the rollers 2 and 3 rotate on axis 6, compressing the spring 7, which ensures a constant pressing of the rollers 2 and 3 to the rolls 8.

When this gap between the guide rollers is changed in accordance with the change of the radius of the rolls 8, providing a stable retention of the workpiece of variable cross section.

Made a prototype device for. rolling mill stand MKU-280. The cage contains four rolls of variable radius from 146 to 151 mm, designed for rolling blades of fencing weapons. The diameter of the intermediate roller 50 mm, guide 46 mm. The rollers are mounted on levers mounted on the same axis. A spring with a compression force of 800 N is installed between the housing and the guide roller lever. The conical rods with a maximum diameter of 13 mm and a minimum of 5 mm and a length of 700 mm served as blanks for rolling. The profiles obtained after rolling in the form of an irregular tetrahedral pyramid had a deviation from straightness of ± 1 mm over a length of 1 m. Profiles rolled without the specified reinforcement had a deviation from straightness of ± 45 mm.

The rolling mill has the following advantages in comparison with the known ones - it expands the technological capabilities by rolling profiles of variable cross section along the length in rolls of variable radius, provides a straight profile when rolling billets of variable cross section.

Claims (1)

Claim Roller reinforcement rolling stands placed on the input and output sides of the cage and including installed on each side of the cage cage, each of which is mounted guide roller and placed between it and the work roll of the cage support roller, characterized in that, in order to expand technological capabilities rolling profiles of variable length along the section in rolls of variable radius; the bodies are equipped with levers mounted on a common axis so that they can be rotated; at the ends of the respective levers, and the guide roller lever is spring-loaded. 1475751 Type A