RU2704425C1 - Device for production of steel profiled reinforcement - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: invention relates to metal forming, particularly, to die drawing. Proposed device comprises monolithic drawing ring with round gage, drawing die to produce oval-shaped profile and profiling roller die. Proposed device comprises monolithic drawing with oval gage and profiling roller die consisting of four rollers with notch in form of imprint of oval-shaped reinforcement profile located at different angles relative to each other, opposite to long axis of oval – larger angle, opposite short axis of oval – smaller angle.

EFFECT: invention enables to produce profiled reinforcement with high bearing capacity.

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Description

The invention relates to the processing of metals by pressure, and specifically to drawing production.

A device is known for the production of profiled steel reinforcement from wire billets, (Patent RU No. 110007) IPC В21С 1/00 (2006.01) Published: November 10, 2011 Bull. No. 31) containing a knot for preparing a wire billet for profiling and a knot for profiling a wire billet, to ensure anti-tension and centering of the unwound wire billet, a unit for preparing a wire billet for profiling is made in the form of a straightening seven-roller device, and a unit for profiling a wire billet is made in the form of a non-drive roller cassette.

However, the disadvantage of this device is, the resulting profiled reinforcement has a insufficiently high bearing capacity.

The closest device for the production of reinforcing profiles is known, (Patent RU No. 2040987 IPC В21С 1/00 (1995.01) Published: 08/09/1995) containing a die installed in a single production line for obtaining an oval-shaped profile and a profiling roller die, and it is equipped with a monolithic wire with round gauge installed in front of the wire to obtain an oval-shaped profile made in the form of a pair of vertical rollers with a smooth barrel and detachable wiring with a rectangular hole mounted between a pair of vertical x rollers and profiling roller draw.

The disadvantage of this device is, the resulting profiled reinforcement has insufficiently high bearing capacity.

The technical result of the invention is to obtain a profiled reinforcement with high bearing capacity.

The technical result obtained in solving this problem is achieved in a device for the production of steel profiled reinforcement, including a monolithic die with a round gauge, a die for obtaining an oval-shaped profile, and a profiling roller die, the device comprising a monolithic die with an oval gauge, and a profiling roller die of four rollers with a notch in the form of an imprint of the profile of an oval-shaped reinforcement located at different angles relative to each other, opposite the long axis of the oval b a larger angle, opposite the short axis of the oval, a smaller angle.

Distinctive features are:

the device contains a monolithic die with an oval caliber, which allows for a small reduction sufficient to clarify a given ovality in the initial cold-rolled billet and to create additional dressing and centering of the billet before the profiling roller draw;

a profiling roller die of four rollers with a notch in the form of a profile imprint of an oval-shaped reinforcement, this makes it possible to obtain profiled reinforcement with increased load-bearing capacity with the spatial arrangement of the long axis of the oval along the line of maximum load in a building reinforced concrete structure;

profiling roller die of four rollers located at different angles relative to each other, opposite the long axis of the oval, a larger angle, opposite the short axis of the oval, a smaller angle, this arrangement of the rollers gives a better study of periodic profiles around the perimeter of the oval.

Comparison of the proposed solutions with analogues and prototype did not allow to identify in them the signs that distinguish the claimed solution, which allows us to conclude that the criterion of "novelty".

The use of oval-shaped reinforcement improves the bearing quality of reinforcement compared to round.

The production technology of the proposed invention is to complicate the design of the device, leading to improved product quality.

The device operates as follows:

The pre-pointed end of the initial billet is passed through a round gauge split wire hole, a die hole between smooth rollers, an oval gauge split wire hole, a profiling hole, then the initial workpiece is pulled using a drawing device of a drawing mill. At the same time, a small reduction is performed in the monolithic die installed at the inlet, sufficient for straightening and aligning the workpiece in front of the vertical rollers and creates a counter-tension. When a round billet is deformed by vertical smooth rollers, a strip is formed - a flat oval, which passes a monolithic die with an oval caliber, where a small reduction is performed, sufficient to straighten and center the workpiece in front of the forming rollers and creates a counter-tension. The resulting oval-shaped steel bar is subjected to processing on a profiling roller die in order to obtain a smooth oval-shaped cylinder along the entire length. On a roller cassette of four rollers with a notch in the form of an imprint of the profile of an oval-shaped reinforcement, periodic profiles are applied with a four-sided girth of the lateral surface of the oval-shaped cylinder. The location of the rollers relative to each other can be performed at an angle of 90 °. In order to better develop periodic profiles around the perimeter of the oval, the location of the rollers can be performed at different angles relative to each other, depending on the ratio of the sizes of the axes of the oval.

Changes in the geometric shape of steel reinforcement, described technological advantages, can significantly expand the range of reinforcing profiles by increasing the bearing capacity.

Information sources

1. Patent RU No. 110007) IPC В21С 1/00 (2006.01) Published: November 10, 2011 Bull. No. 31.

2. Patent RU No. 2040987 IPC В21С 1/00 (1995.01) Published: 08/09/1995.

Claims (1)

 A device for the production of profiled steel reinforcement containing a monolithic die with a round gauge, a die for producing an oval-shaped profile and a profiling roller die, characterized in that it contains a monolithic die with an oval gauge installed in front of the profiling roller die, which is formed by four rollers with a notch in the form imprint of an oval-shaped reinforcing profile located at different angles relative to each other, and at a large angle - opposite the long axis of the oval and At a smaller angle, opposite the short axis of the oval.