RU64537U1 - DEVICE FOR DIRECTION AND CENTERING OF SHEET AND STRIP RENT - Google Patents

Abstract

A device for guiding and centering sheet and strip products relates to the field of rolling production. In the device for guiding and centering sheet and strip products, containing centering rulers 1, mounted symmetrically and parallel to the axis 2 of the rolling table 3, displacement drives 4 of the centering rulers 1, rotary guide rails 5, through a hinge 6 connected at one end to the centering rulers 1, and the other end with vertical axes 7 mounted on both sides of the rolling table 3. On the centering rulers 1 from the metal inlet side there are bevels 8, the inclination angle of which is selected so that it is equal to the angle at the inclination of the rotary guiding rulers 5 with a minimum solution of the centering rulers 1. The centering rulers 1 also have a straight section 9. The bevels 8 and the straight section 9 of the centering rulers 1 are equipped with replaceable overlays 10 with cutouts 11 for the rollers 12 of the rolling table 3. Replaceable overlays 10 are provided with a hook a fastener consisting of sliders 13, screws 14 and hooks 15 fixed to the sliders 13 pivotally. 4 ill.

Description

The utility model relates to the field of rolling production, and more specifically, to devices for guiding and centering strip rolling when feeding it to coilers.

A device is known for guiding a strip in a hot rolling mill when winding into a roll containing drive guides that are moved across the axis of rolling (USSR Author's Certificate No. 980889, M. class. B21B 37/00, publ. 15.12.82.).

After the strip enters the area of the rulers, which are installed parallel to the axis of rolling, the rulers are brought together, thereby centering the strip according to its actual position.

The use of this device does not allow to obtain a high-quality roll, since the lateral edges of the strip from flaws on the rulers have flaws and it is not possible to exclude the telescopic nature of the roll, because the first and last sections of the strip are wound on the drum in a free state, not oriented by the guiding rulers. In addition, there is intense wear on the working surfaces of the rulers.

The closest analogue of the claimed technical solution is a device for guiding sheet metal, containing centering rulers moved across the axis of rolling, and rotary rulers articulated at one end on the centering rulers and the other end on the feed roller, implemented in the method (RF Patent No. 2197349, M. C. B21B 39/14, publ. 01/27/2003).

The disadvantage of this device is that the shape of the junction of the centering and pivoting rulers changes from one size of the strip to another. For example, when switching from a large solution of rulers to a smaller one, a ledge appears on the rental path, which leads to emergencies (folds, drifts, etc.). The joint of the centering and turning rulers is the working and responsible place, its shape and wear affect the quality of centering and the passage of the rolled products through the rulers and, accordingly, the quality of the roll. Another disadvantage of the known device is that at the entrance of the rental in the area of the device, the front end of the strip is in contact with the rotary ruler, which has a lower

parts of the cut-out under the rollers of the roller table. Due to the fact that the rulers are swivel, the cutouts on them are made elongated. When the front end of the car enters these cutouts, contingencies also arise.

The proposed utility model solves the problem of creating a device that ensures reliability and the quality of the coil winding.

To achieve this goal, in a device for guiding and centering sheet and strip products, containing centering rulers installed symmetrically and parallel to the axis of the roller table, transverse displacement drives of centering rulers, rotary guide rulers articulated at one end with centering rulers, on centering rulers from the side Bevels are made of the metal inlet, the angle of inclination of which is selected from the condition that it is equal to the angle of inclination of the rotary guide lines with a minimum To the size of the solution of the centering rulers, the centering rulers are equipped with interchangeable overlays with external cutouts for the roller table rollers. And also, interchangeable pads are equipped with a hook mount.

Such a constructive implementation of the device for guiding and centering the rolled products during winding into a roll will ensure that the front end of the rolled products contacts only with a centering ruler, the entry conditions of which are the same both when working on the minimum width of the solution of the rulers, and when working on the maximum width of the solution, which will ensure the reliability of the device and roll winding quality.

The essence of the proposed utility model is illustrated by drawings, where:

figure 1 - shows the inventive device for guiding and centering sheet and strip products, a top view of the angle of solution of the rulers is maximum,

figure 2 is the same, the angle of the rulers is minimal

figure 3 is a section aa of figure 1,

figure 4 is a section bB of figure 1, -

5 is a section bb of FIG.

A device for guiding and centering sheet and strip products includes centering rulers 1 installed symmetrically and parallel to the axis 2 of the rolling table 3, actuators for moving 4 centering rulers 1, rotary guide rails 5 through a hinge 6 are supported at one end by centering bars 1, and are supported at the other end on the vertical axis 7, installed on both sides of the roller table 3. On the centering rulers 1 from the side of the metal inlet are made bevels 8, the inclination angle α of which is selected from the condition that it lu β tilt pivot 5 when the guide lines

the minimum solution of the centering rulers 1. The centering rulers 1 also have a straight section 9. The bevels 8 and the straight section 9 of the centering rulers 1 are equipped with replaceable overlays 10 with cutouts 11 under the rollers 12 of the roller table 3. The replaceable overlays 10 are also equipped with a hook mount consisting of sliders 13 and screws 14. Hooks 15 are fixed on the sliders 13 pivotally.

The operation of the device for the direction and centering of sheet and strip products is as follows.

Before skipping the strip, the centering rulers 1 are set to the initial position. Centering rulers 1 set the solution more than the width of the incoming rolled 70-100 mm on each side. Upon receipt of the rental in the area of the rulers, the centering rulers 1 bring together and move to the edges of the strip on the working solution. The centering line 1 using the displacement drive 4 is installed at a distance from the axis of rolling 2, equal to half the width of the strip of hire, providing centering of the strip during movement. The rotary guides of the ruler 5 guide the front end of the rental if it enters the device area abnormally, that is, with a large offset. The rental is in contact with interchangeable plates 10 mounted on the bevels 8 of the centering lines 1. Bevel 8 is directed to the straight section 9 of the centering lines 1 and centered. Moreover, on various solutions of the centering bars 1, the contact angle of the edge of the rolled centering bars 1 does not change. This greatly facilitates the adjustment of the rulers to the size of the rental. The joint of the centering rulers 1 and the rotary guide rulers 5, the shape and wear of which affect the quality of centering and the passage of the rolled products through the rulers and which is the main cause of gouging and hooks, is removed from the zone of contact of the strip with the rulers. When the wear pads 10 on the centering lines 1 are worn, the replaceable pads 10 are easily and quickly replaced due to the simple and reliable hook fastening. When rolled products leave the ruler zone from the tracking system (not shown in the drawing), a signal is received to move the rulers to their original position.

Using the device of the claimed design will ensure reliability, as it will allow the front end of the rental to contact only with a centering ruler, the entry conditions of which are the same both when working on the minimum width of the solution of the rulers, and when working at the maximum width of the solution.

The use of the inventive device will also improve the quality of centered rolled products, since the claimed design of the device allows to eliminate flaws, shafts, hooks centered rolled.

Claims (2)

1. A device for guiding and centering sheet and strip products, containing centering rulers installed symmetrically and parallel to the axis of the roller table, lateral movement drives of centering rulers, rotary guide rulers articulated at one end with centering rulers, characterized in that on the centering rulers with the metal inlet sides are made bevels, the inclination angle of which is selected from the condition that it is equal to the angle of inclination of the rotary guide lines with a minimum value of creates centering rulers, centering lines are equipped with interchangeable overlays with external notches under the roller table rollers. 2. The device according to claim 1, characterized in that the interchangeable pads are provided with a hook mount.