CS238746B1 - The device is designed for smooth deposition of hot rods into a collecting pit. It is based on the fact that in the upper position, the swing arm adjoins the inclined surface formed by the collecting pit ribs on the infeed side of the rod roll from the chain tow. Several swinging arms provide the right folding of the lower row of bar rolled because it will reduce the kinetic energy especially in the first stacked rows. The equipment can be used for new collecting pits and for realized collecting pits where the curved rods are curved to prevent further processing. - Google Patents

Abstract

The device is designed for continuous depositing of hot rolled bars into the collection pit. Its essence lies in the fact that the swing arm in the upper position connects to the inclined surface formed by the ribs of the collection pit on the side of the feed of the rolled bars from the chain conveyor. Several swing arms ensure the correct placement of the lower row of rolled bars, as they reduce the kinetic energy, especially in the first rows being deposited. The device can be used in new collection pits and in implemented collection pits, where the collected rolled bars are curved, which prevents their further processing.

Description

The invention solves the problem of depositing hot rods in a collecting pit.

Rolled bars (circular and square cross-section of various sizes) from some types of carbon and alloy steels cannot be allowed to cool freely in the air after rolling, but must be cooled in a special slow cooling device called a cooling pit. Individual hot-rolled bars, coming! This is done by a collecting pit, which is basically a thermally insulated space with the lid removed, partially recessed below the metallurgical level. The collecting pit contains the necessary number of ribs, the inner shape of which forms the profile of the collecting pit itself. The individual hot-rolled bars are transported to the collecting pit with a parallel axis with respect to the longitudinal axis of the collecting pit and after passing on the sloping surface of the collecting pit with sliding or roll (depending on the cross-section shape). pits. Since during this relocation it is almost impossible to maintain a precisely parallel oeu billet and the shaft of the collecting pit, it occurs especially at the first injection of the bar rolled (coming to the collecting pit with a temperature of about 800 ° C), due to kinetic energy accumulated the bottom of the collecting pit to distort them; this is inadmissible for further processing.

This deficiency is eliminated by a device for continuously placing hot rods in a collecting pit, which consists of a swinging arm, one end pivotable about a pin provided on the collector pit rib and the other end connected to a flexible connecting member which is guided over a pulley to the resilient member. By suitable manipulation it is possible to achieve the required filling of the collecting pit with rods of arbitrary dimensions, circular and square cross-sections.

An advantage of the device according to the invention is that the rocker arm in the upper position adjoins a non-inclined surface formed by the ribs of the collecting pit on the side of the feed of the rolled bars from the conveyor-chain lift. Several swinging arms ensure the correct positioning of the lower row of rods, as it will reduce the movement energy especially for the first deposited typhus rods. The device thus completely eliminates the possibility of curving hot rods, which occurs in the uncontrolled free fall.

An example of an embodiment of a device for continuously placing hot rods in a collecting pit is shown in section on the drawing. The pivot arm 4 is pivotably attached to the pits 6 of the collecting pit. Depending on the length of the rolled bars to be rolled, these pendulum ribs 6 are provided with the required amount in succession. The rocker arm 6 is connected at its other end to a connecting member 6 extending over the roller 8 to the flexible member 8. The collecting pit is provided with thermal insulation g.

The individual rolled bars are conveyed by a chain lift 4 to a collecting pit, sliding on an inclined surface formed by the ribs 6 of the collecting pit. In their upper position, the swinging arms 6 are continuously connected to the inclined surface formed by the ribs 6 (drawn in dotted lines) and ensure correct positioning of several lower-row rods. The number of rolled bars lowered into the collecting pit at the upper position of the swing arms depends on the shape and dimension of the cross section of the rolled bars. This is followed by lowering the rocker arms 6 to a suitable central position (drawn fully), which ensures the bearing of the second or further rows for a given bar section profile. Thereafter, the rocker arms 6 are lowered as required until they completely fall below the profile of the fixed ribs 6 of the collecting pit, thereby being rendered inoperative. The resilient member 4 ensures that, in the event of an accidental fall of the rolled bars into the empty collecting pit, when the rocker arms 4 are in the lower position but above the profile of the fixed ribs 6 of the collecting pit, some of the device is not destroyed. ^of

The device according to the invention can be realized with collecting pipes designed, even already built, in which the collected rolled bars are curved, which prevents further processing.

Claims (1)

SUBJECT OF THE INVENTION A device for continuously placing hot rods in a collecting pit, characterized in that it is formed by a swing arm (4), one end pivotable about a pin (3) provided on the collecting pit rib (2) and the other end connected to a flexible connecting member ( 5), guided over the roller (6) to the resilient member (7).