SU371985A1 - LOADING PLOT OF THE INFINITE ROLLING MILL - Google Patents

Description

one

There are known loading areas for the mill-finite Lokrokat, which have two razmgvatel installed in front of the line of work stands and a stationary butt-welding machine.

In this area, the inspection is a cumulative capacitance in the form of a loop we, providing the possibility of welding the ends of lacquer on the stationary machine without stopping the rolling process.

The proposed loading area allows (in relation to rolling of a long metal) to eliminate a loop loop by using an uncoiler with a stationary drum as a storage tank. For this, unwinders are installed in parallel in the processing line of the mill, and the butt welding machine is placed between the unwinders.

) The drawing shows the scheme of the mill with the described boot site.

The rolling mill consists of two (or more) decoilers / with fixed drums, a stationary butt-welding machine 2 (for example, according to the type of machines used on continuous automatic lines of drawing mills), 01 equipped with a device for trimming the ends and removing the burrs, carrying out the butt contact welding ends riots blanks; correct machine I intended to edit the curved

blanks; a device 4 for heating the workpiece (by electroprocessing) consisting of two pairs of contact rollers, one pair of rollers must be able to move along the workpiece, changing the length and resistance value of the heated section and ensuring adjustment of the power input and the temperature of the metal; emergency scissors 5 serving

also for trimming the cold front end of the workpiece; working stands 6, 7 and 8 (the first three-unit block), the design of which must allow horizontal, vertical or any intermediate position

rolls, and the individual drive - infinitely variable speeds within wide limits; similar working stands of I Yu, 11, forming the second three-cell block, flying scissors 12, winders 13 and 14 for coiling

finished products in riots, the correct machine 15, flying scissors 16, the refrigerator 17. The loading area works as follows.

The front end is wound up from one of

billet riots from the decoiler / fed to the correct machine 3. At the same time, the rear end of the first riot and the front end of the second, located on the second decoiler, are put into tubes (butt welding machine 2, where they are welded after preparation of the ends, and then cleaned from the burr formed during welding with the help of an internal ratchet-mounted device. After that, the seam prepared for the G1.r6kat is released from the butt clamps of the welding machine, simultaneously with the front end After the riot, after the adjustment, it enters the device 4 for heating the billet, where it is heated to a predetermined temperature using resistivity and after cutting the cold front end of the billet on scissors 5 it rolls into cages 6, 7 and 8 of the first block and, if necessary, in one or more the second block of the cage (9, 10, 11). After that, the rolled profile is again (wound up on the winders 13 and 14 ъ of the riots or, after being straightened on the correct machine 15, it is cut to measured lengths on the scissors M and in the form of rods refrigerator -17. At the time of the end of rolling, the first rebellion and the release of the unwinder, another (third) reel of the billet is fed to it, the front end of which for a time shorter than the duration of the second reel rolling is welded to its rear end and the whole process proceeds continuously.

The mill operates on a round billet supplied in riots.

Subject invention

The loading section of the endless rolling mill, which contains two unwinders and a stationary buttwrapping machine installed in front of the working stand, preferably with a rammer, characterized in that, with the copTOBOiro metal loop loop, we unwind the unwinder with a stationary drum as a storage tank. in the tekhnolotichsky line of the station, and the butt welding machine is located between “them.

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