SU66757A1 - Mill for rolling profiles of variable length - Google Patents

Description

For Rolling profiles of variable length along the section, mills are known in which the "idle roll" approaches during the rolling process to the upper drive roll.

The proposed rolling mill differs from the above-mentioned mills in that, in order to move the idle roll, a weight was applied, which descended on a laclé surface under the action of its own weight, connected through a drum with a cable to a CLIM device for lifting the fork carrying the idle roll.

The drum through which the rope is thrown is connected to the drive roller by a friction clutch. When the load reaches the lowest position, the friction clutch turns the drum in rotation in the direction of rotation of the drive roll; the cable is wound on the drum and the load is lifted to its original position.

In addition, the load is connected by a cable with a tong clamp, for withdrawing the profile from the rolls. By this, 1 synchronization of the change in the profile cross section along the length with the speed of its exit from the rolls is achieved. On

FIG. 1 is a front view of the mill; FIG. 2 is a plan view thereof; in FIG. 3 is a side view.

Upper drive roller} rotates counterclockwise. Nile-roll is 3-idler, its axis is fixed in frame 4, bearing roller 5 below, with which the frame is held on a wedge: device consisting of a wedge 6 rigidly connected to the plate 7. and the toothed rack 10. The latter is supported on roller 8 - rollers 9, sitting on the axes in the liners fixed in the frame of the rolling mill. Two cylindrical gears 19 are coupled to the gear rack 10, sitting on the same shaft with the conical bristle L, which in turn is coupled with the same bristle sitting on the vertical shaft // a, bearing on the other end of the bevel gear // b; the same bar is mounted on a horizontal shaft 12a, carrying the drum J2, on which the cable 20 is screwed; the second end of the cable is connected to the clamp clamp 16. serves to pull the profile out of the rolls. The drum shaft is connected by a friction clutch 2 to the shaft 126, which carries the sprocket, on which the chain 1a is put, is mounted on the same sprocket, which is rigidly mounted on the drive roll shaft. A second cable 21 tied over a roller 22 carrying a load 23 at the other end, which can be lowered under the action of its weight on an inclined surface 24, to the rubber lining 25, is attached to the clamp clamp. The latter is connected with a friction clutch 2 lever or electromagnetic or hydraulic gear, not shown in the drawing. When the load 23 is pressed on the cushion 25, the friction clutch 2 engages the shaft} 2a of the drum with the shaft 126, and the drum 12 begins to rotate in the same direction with the drive roller /. The friction clutch is also associated with the latch 13, which is shown below. The clamp clamp 16 moves on rails 26 supporting the roller 22, and is provided with two spring-loaded grippers 14, seated on the rollers 27, and spring-loaded; an emphasis 15 supplied below with a hook-shaped process. In the path of the clamp clamp 16, a retainer 13 is installed below, and a movable stop 17 for rollers 27 is mounted at the top.

When the mill is in operation, the rolling profile that goes to the right {see FIG. 1) from the rolls, finds the / 5 on the support and causes it to turn ITS1 with the hook end counterclockwise so that this end is more than the latch 13. Zach: cotton 14 clamp the profile and the clamp 16 tons is not under it. the action of load 23 to the right. At the same time, the clamp 16 tons is not to the right of the cable 20 and causes the drum 12 to rotate clockwise. The shafts 12a and 126 are at this time disconnected and the rotation of the drum is not related to the rotation of the drive roll 1. 1 The rotation of the drum 12 is transmitted through the vertical shaft. The gears // that cause the rack to move in the opposite direction, wedge 6 in the T10MI direction. through the roller 5 lifts the frame 4 and the roll 5 approaches the roll 1, gradually cageing: rolling profile onto a narrowing section. Thus, synchronization of the change in the profile cross section along the length with the speed of its exit from the shaft is achieved. Load 23 at this time. Cast around the inclined surface 24 and, at the end of its path, presses on the rubber net 25, which is set so that the load rests against it when the entire profile leaves the rolls. The friction clutch 2 connected to the cushion 25 at this moment will connect the shafts 12a and 126, and the drum 12 will begin to rotate in the opposite direction, i.e. counterclockwise, as the drive roll U, and no sweat pincer clamp 16 and load 23 to the starting position. In this case, the wedge 6 also moves to the left and allows the roll 3 to descend to the required distance.

At the moment when the load 23 stops the roller 25, the roller 27 rests against the stop 17, which is set in a certain position, and the clips 14 move away from the rolled profile.

During the reverse movement of the clamp clamp, the hooked end of the stop 15 passes by the clamp 13 and is held by it until the next profile passes, which, using YOUR1 pressure, will again turn the hooked end of the stop clockwise. The locking pin 13 of the locking passage of the stop 15 past it stops the friction clutch 2, the coupling between the shafts 12a and 126 is interrupted and the cycle repeats.

P r u ed Ml invented AND

Claims (3)

1. A mill for rolling profiles of variable length along the section with the G1 approaching the lower idle roll to the upper drive roll during rolling, which is due to the fact that for moving the idle roll 3 a weight 23 is applied to the idle roll by its own weight on the inclined surface 23 cabled through the drum 12 with a wedge device for lifting the fork 4, the carrier, the roll 3, 2. The form of the mill according to claim 1, characterized in that the drum J2 is connected to a drive, rolls / friction clutch, designed when the load reaches the lowest position to turn the drum 12 into rotation in the direction of rotation of the drive roll /, by winding the cable, lift the load to its original position. 3. The shape of the mill on II. 1, characterized in that the load is connected by a cable with a clamp clamp for withdrawing the profile from the roll OV in order to synchronize from. -change profile section along the length with the speed of its release from the rolls. 27/4 CZ / 7 / la 76 FIG. 2 2B -122