SU984539A1 - Abutment for arresting ferromagnetic rolled stock - Google Patents

Description

The invention relates to rolling production, is aimed at improving auxiliary equipment, rolling, mainly varietal mills.

Known stops for stopping the rolling on the rolling table, made in the form of a massive plate, perceiving impact and resting on a shock spring mounted in the same axis with the axis of hire £ 1].

Closest to the proposed one is a mobile stop containing a plate for perceiving the shock load from the rolled stock, a spring shock absorber and mechanisms for setting the plate in the working position. The mechanism of raising and lowering the plate: in the form of a balanced two-shouldered lever, on one shoulder of which a plate with shock absorbers is mounted, and on the other '7 a pneumatic drive and a mechanism for moving the plate along the roller table Нед The disadvantages of the known solutions are that such a stop design does not provide an exact stop of rolling due to its inevitable reactive recoil when exposed to the plate, which leads to poor-quality cutting during dimensional cutting.

This drawback is especially significant in the dimensional cutting of finished small sections in packages with cold cutting shears, since the spread of rods ... f10-30 mm at a stop reaches 80-150 mm, and the tolerance according to GOST for measured length is 30-70 mm.

The purpose of the invention is to improve the accuracy of stopping hire.

The goal is achieved in that the stop plate comprises a perception of an impact load, the spring damper mechanism pli15 _you install the operating position, and the plate is flush with the plane of the poles' perception built: mnogopolyusnyyt electromagnet.

In Fig. 1, an upfr is shown for a * * stop of ferromagnetic rolling, a general view; figure 2 is a section aa in figure 1; in Fig.Z - section bB in Fig.2,

The stop for stopping the ferromagnetic rolling contains a plate 1, in which a multi-pole electromagnet 2 is flush with the plane of perception with its poles 2. Electromagnet 2 is mounted movably in a guide made in plate 1 and rests on a spring shock absorber 3. Plate 1

984539 4 perceptions is installed on one shoulder of a swinging balanced two-shouldered lever 4. On the other shoulder of the lever 4 there is a counter load 5, The two-shoulder lever 4 is raised and lowered (installed in the roller conveyor line) through the traction system from the pneumatic cylinder '7, The two-shoulder lever is supported by a fixing cam 8 ,

To move along the roller table, the emphasis is equipped with a trolley 9 with rollers, driven by an electric motor 10 by means of a worm-cylindrical gear 11. The rolling axis of the two shoulders lever 4 and the pneumatic cylinder 15 are mounted on the trolley 9. The trolley 9 moves along the monorail 12,

The emphasis works as follows. When transporting metal along the rolling table 13 to the stop at the moment of impulse 20 to stop the rental package 14, the plate 1 lowers and blocks its path. Plate 1 is installed in the line of the rolling table 13 by lowering the rod stump ^ cylinder 7, 25

The plate 1 in the lowered states is fixed by the cam 8. The cam 8 prevents the plate from rising spontaneously when a stack of strips hits the plate. At the moment the metal meets the plate, the multi-pole electromagnet 2 is turned on, which acts on the car with magnetic field lines, which eliminates the dynamic reactive movement of the car when it stops at reverse direction.

Due to the fact that the front ends of the bundle rods are in a magnetic field, they become magnetized and the end face of the bundle becomes monolithic, the rods in the bundle become internally interconnected and are attracted to the poles of electromagnet 2, i.e. plane of perception of the plate 1. The force of attraction of the end face of the package (the force is used to quench the reactive force of the recoil) is controlled by changing the ampere-turns of the excitation coil of the electromagnet. With this condition of the package, it is cut on scissors 15 installed in the line of the rolling table 13.

To set the emphasis on the given correct lengths, the perception plate 1 with a two-arm lever 4 has the ability to move along the roller table 13 along the monorail 12 together with the trolley 9, driven from the electric motor 10 by means of a worm-cylindrical gear transmission 11.

The proposed stop design eliminates the spread of rods in packets relative to each other. This increases the accuracy of cutting of long products to measured lengths during cold cutting. The economic effect of using the invention, for example, in one small mill, will be 100-150 thousand rubles / g.

Claims (1)

perception is installed on one shoulder of the swinging balanced double arm 4. On the other shoulder of lever 4, counterweight 5 is installed. Raising and lowering (installing in the line of the roller table) double arm 4 is carried out through a system of pneumatic cylinder 6, the double arm leans against the firing lever 8 For movement along the roller table, the emphasis is provided with a trolley 9 with rollers driven by an electric motor 10 by means of a black cylindrical gear I. The axis of swing of the two shoulders lever 4 and the pneumatic cylinder 7 are fixed on the trolley 9. Te ezhka travels along the monorail 12, emphasis operates as follows. When metal is transported along the conveyor table 13 to the stop at the moment of giving an impulse to stopping the package of rental 14, plate 1 descends and blocks its path. The plate 1 is installed in the line of the roller table 13 by lowering the rod to the cylinder stub 7. The plate 1 in the lowered condition is fixed by the cam 8, the Cam 8 prevents the plate from spontaneously lifting when the stack of strips hits the plate. At the moment of meeting the metal with the plate, a multi-pole electromagnet 2, which affects rolling by magnetic power lines, which eliminates the dynamic reactive movement of the car when stopped in the opposite direction. Due to the fact that the front ends of the rods of the package are in a magnetic field, they are magnetized and the end of the package becomes monolithic, internal cohesion of the rods in the package between them takes place and it is attracted to the poles of the electromagnet 2, e, e. The plane of perception of plate 1, the cutting edge of the package end (the force is used to quench the reactive recoil force) is controlled by changing the current coils of the electromagnet excitation coil. In this state of the package, it is cut on the scissors 15 installed in the line of the roller table 13. To set the stop to the specified correct lengths, the perception plate 1 with the double-arm lever 4 has the ability to move along the roller table 13 along the monorail 12 together with the trolley 9, driven by the electric motor 10 by means of a worm-cylindrical gear 11, the proposed design of the stop makes it possible to eliminate the variation of the bars in the packages relative to each other. This improves the accuracy of cutting long products at lengths during cold cutting. The economic effect of using the invention, for example, on one small-section mill, will be 100-150 thousand rubles / g. Claims of the invention A stop for stopping a ferromagnetic bar, containing a shock load perception plate, a spring shock absorber and a plate mounting mechanism in a working position, characterized in that, in order to increase the stop accuracy, it is equipped with an integrated pole that is flush with the plate with a multi-pole electromagnet. Sources of information taken into account during examination 1, Tselikov A, I, and others. Rolling mills, Metallurgists, 1958, p. 364, 2, Chekmarev A, P, and others. Rolling on small-section mills, Metallur 1967, p. 251, rice, 144. gi, L-l 7