SU1752464A1 - Strip profile and shape control method - Google Patents

Abstract

Use: rolling production. The invention in the stand of the cage, in the place of bores under the saddles of the support rollers 1, is made of dead-hole holes 2 with an axial line parallel to the vertical axis of the bed, in which strain gauges 3 are placed. Tensometric displacement sensors can be located in dead holes of holes made in the saddles (shoes ) support rollers, in the place of their contact with the bed of the working stand 3 Il.

Description

Fig 1

The invention relates to rolling production, in particular, to a method for adjusting the profiles and strip shapes when rolling in a rolling mill, for example, on a rolling mill.

The parameter that determines the control profile and the shape of the strips is the propellant force in the mills, it is measured by mesoscals, spreading out, tk right, between the Bits and the sport, ix saloons Design j & 20-haul stands with monolithic beds will not allow to measure rolling force by the traditional methods mentioned

The design of the working stand of the rolling mill stand, Scnd imlr, h KPTOJOH on the court of justice, on the basis of the pottery. Hypresis- / lOG oio tschlindpa with. Have a good look at the fabulous tooth fj tom segmepte and the song you use the u.iv s S treadmill climber. Pr.1 This is an exodus from the condition of equality, to the second one 6oiji / M ts yukp shgki gitsao 1pcheskikh tsil h lrsv pressure device

This device is proto / cm tricast ISMR-rd of usp npovar sym-driver with a manometer for ip liquid in t а plun) 1 ernaya and podplui h r

  G01OSTHH IPrOUHf HIU POB

Differ 1 C with h 1st f aHOMeip h - tMriHoro ycrpotlcn ,; gives in technicals pf ° rz ayc wnenpof it is customary to evaluate in tons, therefore, as a result, it is differential differentially about a. smsfs ass sb oddigo o chereschetyvat1- voyitie pro and kp The disadvantage of the “wcrpyiuuHi” involves a large (up to 20%) slowness of the moronium of the procK 43 rf hrsrmi-C1, which was lost in a gap, it was only a matter. iaThix SRG- mg rex yrrai ovpem nx on axes of supporting ro

LI JOB

 The method of measuring the GFOG 50 roller ridge with the help of one of the measuring sensors, Jacquel on 01 to 1 (X ground / working stand: on the ff ai MSKnx disputes of the support rollers) or other parts of the load - TssaaiouiM f

The disadvantage of this method is that it has a large (15%) operation force of rolling Adhesive sensors on charms /}., Whose surfaces, i spun Pf, have a load, have “/ ossiuyu ochspni - P8dos-agkch low feeling and | 0Ј chp

-

-

as with the deformation of the monolithic bed, even at high forces, the very low, low temperature; the selection of gaps in the cage nodes is not taken into account; at low effort x {up to 150 g)

5 deformation of the working stand by means of direct pro-rial rolling force.

The closest to the proposed technical essence and the achieved result is a method of measuring with the tongues of the rolls of the rolling mill, in which a hole is made in the body of the roll along its diameter to be installed in a rigid pin.

About ogovo ovverstyp roll insert

15 A sensor with a sensing element, which is an elastic plate with a wire sensor connected to the carrier and a measuring bridge connected. The stopper presses the sensor against the top of an axial bore in the roll

When flattening the roller, the pins transfer the movement of the surface globule of the stick to the sensor included in the measuring circuit, which allows determining the amount of mechanical movement occurring in the specified roller

The disadvantage of this method is that it only indirectly allows to judge

3D is about the magnitude of the rolling force, and the ego, in its own way, increases the error determined 1 is the regulating power factor in the process of controlling the percent control / I AND FORPY

35 The aim of the invention is to increase the rolling height of the rolled product by increasing the accuracy of the rolling force.

 The goal is achieved by the fact that in the bed along each seat of the support of the roller of the roller with the vertical axis Kj-h, gpuhodon holes are drilled by strain gauges to establish the walls of these holes, and information processing is carried out from those sensors, 5 of which are pacnonovenbi in the area corresponding to - 01c, the width of the rolled strip. At the same time, the skimometric displacement sensors can also be located in the deaf holes made in the saddles

50 (shoes) support rollers at the place of their contact with the bed of the working stand

The support roller is an axis rotating about rolling bearings fixed in the saddles (weft gauge grooves). On the axis, thick-walled steel tempered rings are tightly mounted on the pins, in contact with the second interlayer and the gear to the back of the frame and the gray head. , szposreastaenenopi r and oshchirs hf staninu rolling force. The number of backwaters and sensors installed in them corresponds to the number of saddles, and this, in turn, is determined by the length of the barrel of the roll of a multi-roll mill,

These sensors measure the vertical components of the forces acting on the support rollers. The sum of the readings of all sensors is the rolling force, since Despite the fact that the force acting on the work roll is decomposed into a force in the intermixing contacts, the rolling force is equal to the sum of the vertical component forces acting on the support rollers.

The installation of sensors and bores under each saddle of the support rollers allows you to have information about the distribution of contact loads along the width of the work roll barrel and, after processing the data in the AAPA, give a signal about a change in the roll gap.

The sticker of the teisometric sensors of the blind / bottom holes of the wall makes it possible to measure the deformation of the loaded elements of the stand with high accuracy, i.e. The deformations of these elements are directed at stretching these sensors, and at their bending.

Tonometric sensors for measuring rolling force are located on the side wall of the impermeable 01 holes, the axes of which coincide in direction with the vertical components of the rolling force and take tensile forces directly from the loaded element, not perpendicular to the deformation with force transfer through the pin.

The sensors are located in the dead-hole holes, made in the frame, in the place of the raster under the saddles of the support rollers. The axial line of these holes is parallel to the vertical axis of the bed. At the same time, the strain gauge sensors can also be located along the dead-hole holes made in the saddles (shoes) of the support rollers at the place of their contact with the bed of the working stand. This makes it possible to measure the rolling force at several points over the entire width of the strip with high accuracy.

Figure 1 shows the rolling unit of a 20-roll rolling mill, the cross section of the upper part; 2 - the same, the holes are made with the saddles of the support rollers at the place of their contact with the bed of the working stand.

The device comprises a saddle 1 of a support roller, a continuous hole 2, a strain gauge sensor 3 movement.

The device works as follows

In the frame of the 20-shaft cage at the place of bores under the saddles of the support rollers 1, deep-hole apertures 2 are made with an axial line parallel to the vertical axis of the bed, with strain gauges 3 displaced.

When the strip is rolled, the rolling force through the work roll, the 2nd horizon of the support hall, the owls and the support rollers is transferred to the frame, (in place of the bores under the saddles of the support rollers) there are strain gauges that allow for the strain that occurs in the frame. Total the readings of the strain gauges will constitute the rolling force.

The measured force is transmitted to the UEMW, which, after processing the information received, commands the actuators to change the roll gap. The presence of several sensors along the roll barrel allows to estimate the distribution of contact loads across the width of the strip and to achieve an accurate setting of the roll gap to eliminate transverse thickness variation,

The use of the proposed method allows, in comparison with the existing method, to significantly improve the measurement accuracy of the rolling force by directly measuring this force and including it as a recording element in the automatic control system of the strip thickness.

Claims (1)

Claims The method of adjusting the profile and shape of the strip when rolling on a multi-roll mill, the support rollers of which rest on the saddles, including measuring the rolling force using strain gauges mounted on cage elements, processing the information received, the effect on the position of the work rolls that differs from , in order to improve the quality of rolled metal, teizootchgki placed on the walls of dead-hole holes drilled along each seat parallel to the vertical axis of the cage, and the information processing From sensors located in the area corresponding to the width of the rolled strip. Fig 2