SU1748896A1 - Sheet rolling mill delivery roller table - Google Patents

Abstract

SUMMARY OF THE INVENTION: the outgoing roller conveyor contains a frame with sections, idle and driven rollers, some of which are set above the level of the roller table. by the parties. 3 з.п f-ly, 3 ill.

Description

The invention relates to metallurgy, mainly ferrous metals, and can be used on plate rolling mills, namely, an outlet roller conveyor.

Known conveyor rollers with rollers, the barrels of which are made of cast iron, with individual drive rollers are known. The length of the roller table is determined by the cooling time of the strip to a temperature below 700 ° C, which ensures high quality of the metal after coiling. Usually the outlet roller conveyor contains at least 400 pieces. rollers installed section by section on 3-6 pieces. in each section.

The closest in technical essence to the invention is a device that implements a method of transporting a strip by diverting the rolling table of a sheet rolling mill, where it is proposed to install idle rollers on a roller table with a certain pitch, equipped with lifting mechanisms. After the winder has caught the front end of the strip, the idle rollers are moved in a plane perpendicular to the roller table axis until the strip leaves the contact with the other rollers, and after

the passage of the strip of the roller table, they return to their original position. However, in this device there is no drive of the lifting rollers, which presupposes the difference in speeds of the surface of the rollers and the strip; this contributes to their accelerated wear and deterioration of the surface quality of the transported metal; The design of the proposed roller table is complex, since it additionally establishes lifting mechanisms (two for each lifting roller, pneumatic or hydraulic lines, a system for controlling the lifting mechanisms).

The purpose of the invention is to simplify the design of the roller table and improve the quality of the strip surface.

This goal is achieved by the fact that in an outlet roller table of a sheet rolling mill containing a frame with sections, idle and driven rollers, some of which are installed above the roller table level, the rollers protruding above the roller table level are rigidly mounted in the frame sections and made driving. The required height difference between the rollers is achieved by increasing

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the diameter of a part of the rollers, or using as the protruding rollers of the same diameter as the rest, and elevated ones, for example, using spacers for bearings and driving the roller. Also, the above objective is achieved in that at least one pair of frame sections are made with unequal adjacent sides. This provides an opportunity to do without the manufacture of new parts, as well as increases the smoothness of movement of the beginning and end of the strip from the last stand to the pulling rollers of the winder. The use of rollers of a larger diameter allows these rollers to be reinforced and allows them to be used after wear to the size of the rest until complete destruction. When using raised rollers of the same diameter as the others, this goal is achieved by the fact that serial rollers can be used without making new parts and mechanisms.

Figure 1 shows a diagram of the roller with protruding rollers in the form of rollers of larger diameter; in fig. 2 is a diagram of a roller table with protruding rollers of the same diameter as the others, and raised with the help of gaskets; in fig. 3 is a diagram of a roller table with sections elevated on one side.

The outlet roller conveyor contains rollers 1 with an individual drive. Rollers 2, which protrude above the general level of the roller table, are installed on it with a certain step. All rollers are installed in section 3 for 3-6 pcs. Tapping rollers 4 are used for the task of starting the strip on the drum of the winder 5. The main line shows the position of the strip during its transportation in the initial period - the pull rollers 4. The dashed

line - the position of the strip after the seizure of its beginning by the drum winder 5 and until the end of the strip leaves the last stand of the mill.

The transportation of lanes is carried out as follows.

The beginning of the strip after leaving the last stand of the mill moves along the rollers 1 and 2 to the pulleys 4. After the strip is grabbed by the reel of the winder 5 and before the rear end of the strip leaves the stand, the strip is under tension and is detached from the rollers 1. At this moment the strip is supported by drive rollers 2 protruding above the general level of the roller table. After the end of the strip has left, its movement is carried out along the rollers 1.2.

Claims (4)

1. The leading roller conveyor of the sheet rolling mill, containing a frame with sections, idle and driven rollers mounted in supports, some of which are installed above the level of the roller table, o-; characterized in that, in order to simplify the design and improve the quality of the strip surface, the rollers protruding above the roller table are rigidly mounted in the frame sections and made driving. 2. Roller according to claim 1. it differs in that the rollers protruding above the level of the roller table are made of a larger diameter than the others. 3. The roller conveyor according to claim 1, characterized in that the supports of the rollers protruding above the level of the roller table are provided with gaskets, 4. The roller plate according to claim 1, of which is at least one pair of frame sections with unequally high adjacent sides. Fit. / vjye ± 3 ". 2 FIG.