CN106743903A - A kind of amorphous band Coiling Tension Control method and device - Google Patents

Abstract

The invention discloses a kind of amorphous band Coiling Tension Control method and device, wherein method is comprised the following steps：When setting time interval is reached, the current rotating speed n of the chill roll is determined₀, and the takers-in current rotating speed n₁；According to the diameter D of the chill roll being obtained ahead of time₀, and the n₀And n₁, determine the current torque M of the takers-in_e；By the current torque M of the takers-in_eSetting torque with the takers-in is contrasted；According to the current torque M_eWith the rotating speed n that the comparing result of the setting torque adjusts the takers-in₁.Amorphous band Coiling Tension Control method provided by the present invention, by the rotating speed n for adjusting the takers-in₁So that the torque M of the takers-in_eLevel off to the setting torque, and then realize the constant tension of the amorphous band, effectively solve the problems, such as tension fluctuation in amorphous band coiling process, the constant tensile control of coiling process is realized, so that the band for rolling is rolled tightly and neat.

Description

A kind of amorphous band Coiling Tension Control method and device

Technical field

The present invention relates to amorphous band coiling coater field, more particularly to a kind of amorphous band Coiling Tension Control method And device.

Background technology

As electronic technology is to high frequency, the development of miniaturization, amorphous super-microcrystalline soft magnetic alloy material has been made various Various kinds magnetic device replaces the materials such as silicon steel, ferrite and permalloy, is applied to power industry, electronics industry and power electronics Technical field.

In the production process of amorphous thin ribbon, mainly repaired a die by hired car walking, copper rod, capture winding, temperature control, pressure The links such as control composition, a strip is formed after the amorphous stoste of molten condition is processed, after amorphous band bypasses chill roll, then It is wrapped on takers-in after bypassing pressure roller and two carrying rollers, is rolled up the strip of volume by winding link, in coiling process In, in order to ensure the performance of amorphous thin ribbon, it is necessary to ensure the constant tension of amorphous band in production line.

At present, the constant tensile control mode of band winding process mainly has regulatory PID control pattern and change in production line Power torque control model.

However, regulatory PID control is because principle is simple, easy to use, applicability is good, with very strong robustness, in work It is widely used in industry process control, but PID control needs to set up the accurate Mathematical Modeling of controlled device, can only locate Reason linear control system.And amorphous band winding process is an extremely complex process, with the spy such as non-linear, time-varying, delayed Property, regulatory PID control pattern is difficult to meet the constant tensile control of coiling process, can influence the quality of strip coil.

In addition, varied tention torque control model then requires that coiling process centerline velocities are constant, and during strip coiling by Constantly increase in strip coil taken amount, cause the radius for batching rod to be also continuously increased, if the rotating speed of reel-motor keeps rotating speed If constant, linear velocity can become larger, so being also difficult to the constant tensile control of coiling process.

Therefore, how tension fluctuation in amorphous band coiling process is effectively solved the problems, such as, realizes the perseverance of coiling process Power is controlled, so that the band for rolling is rolled tightly and neat, it is the current technical issues that need to address of those skilled in the art.

The content of the invention

It is an object of the invention to provide a kind of amorphous band Coiling Tension Control method and device, for controlling amorphous band The constant tension in coiling process, so that the amorphous band for rolling is closely neat.

To achieve the above object, the present invention provides following technical scheme：

A kind of amorphous band Coiling Tension Control method, comprises the following steps：

When setting time interval is reached, the current rotating speed n of the chill roll is determined₀, and the takers-in is current Rotating speed n₁；

According to the diameter D of the chill roll being obtained ahead of time₀, and the n₀And n₁, determine the takers-in works as forward Square M_e；

By the current torque M of the takers-in_eSetting torque with the takers-in is contrasted；

According to the current torque M_eWith the rotating speed n that the comparing result of the setting torque adjusts the takers-in₁。

Preferably, the step is " according to the diameter D of the chill roll being obtained ahead of time₀, and the n₀And n₁, determine institute State the current torque M of takers-in_e" be specially：

Determine the speed reducing ratio k of presently described chill roll₀With the speed reducing ratio k of the takers-in₁；

The current torque M of the takers-in is determined according to below equation_e：

Wherein：T is amorphous band tension value, D₀It is cooling roller diameter, D₁To batch roller diameter, n₀It is chill roll rotating speed, n₁ It is takers-in rotating speed, k₀It is chill roll speed reducing ratio, k₁It is takers-in speed reducing ratio.

Preferably, the step is " according to the current torque M_eComparing result with the setting torque adjusts the volume Take the rotating speed n of roller₁" be specially：

According to the current torque M_eWith it is described setting torque mathematic interpolation described in takers-in rotation speed change amount Δ n, And the rotating speed n of the takers-in is adjusted according to the rotation speed change amount Δ n₁。

Preferably, the step is " according to the current torque M_eComparing result with the setting torque adjusts the volume Take the rotating speed n of roller₁Specially：

As the current torque M_eDuring more than the setting torque, increase the rotating speed n of the takers-in₁；Work as forward when described Square M_eDuring less than the setting torque, the rotating speed n of the takers-in is reduced₁。

A kind of amorphous band Coiling Tension Control device, including：

Rotating speed determining module, for when setting time interval is reached, determining the current rotating speed n of the chill roll₀, and The current rotating speed n of the takers-in₁；

Torque determination module, for the diameter D according to the chill roll being obtained ahead of time₀, and the n₀And n₁, it is determined that The current torque M of the takers-in_e；

Contrast module, for by the current torque M of the takers-in_eSetting torque with the takers-in is contrasted；

Rotational speed regulation module, for according to the current torque M_eComparing result with the setting torque adjusts the volume Take the rotating speed n of roller₁。

Preferably, the torque determination module is additionally operable to：

Determine the speed reducing ratio k of presently described chill roll₀With the speed reducing ratio k of the takers-in₁；

The current torque M of the takers-in is determined according to below equation_e：

Wherein：T is amorphous band tension value, D₀It is cooling roller diameter, D₁To batch roller diameter, n₀It is chill roll rotating speed, n₁ It is takers-in rotating speed, k₀It is chill roll speed reducing ratio, k₁It is takers-in speed reducing ratio.

Preferably, the rotational speed regulation module is additionally operable to：

According to the current torque M_eWith it is described setting torque mathematic interpolation described in takers-in rotation speed change amount Δ n, And the rotating speed n of the takers-in is adjusted according to the rotation speed change amount Δ n₁。

Preferably, the torque determination module is additionally operable to：

As the current torque M_eDuring more than the setting torque, increase the rotating speed n of the takers-in₁；Work as forward when described Square M_eDuring less than the setting torque, the rotating speed n of the takers-in is reduced₁。

Amorphous band Coiling Tension Control method provided by the present invention, comprises the following steps：Between setting time is reached Every when, determine the current rotating speed n of the chill roll₀, and the takers-in current rotating speed n₁；According to being obtained ahead of time The diameter D of chill roll₀, and the n₀And n₁, determine the current torque M of the takers-in_e；The takers-in is worked as into forward Square M_eSetting torque with the takers-in is contrasted；According to the current torque M_eWith the comparing result of the setting torque Adjust the rotating speed n of the takers-in₁.The control method, by being spaced interior, the acquisition chill roll and the volume in setting time The current torque M of the takers-in is calculated after the rotating speed for taking roller_e, and judge the current torque M of the takers-in_eWith setting torque Deviation adjust the rotating speed n of the takers-in₁, so that the torque M of the takers-in_eWith the numerical value phase of the setting torque Together, due to the torque M of the takers-in_eWith the tension force proportional of amorphous band, therefore, by adjusting the takers-in Rotating speed n₁So that the torque M of the takers-in_eLevel off to the setting torque, and then realize that the tension force of the amorphous band is permanent It is fixed, tension fluctuation in amorphous band coiling process effectively is solved the problems, such as, the constant tensile control of coiling process is realized, so that volume The band for getting up is rolled tightly and neat.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is a kind of flow chart of specific embodiment of amorphous band Coiling Tension Control method provided by the present invention；

Fig. 2 is amorphous band coiling process structural representation provided by the present invention；

Fig. 3 is 20 times of torque rate of change simulation waveforms in amorphous band Coiling Tension Control method provided by the present invention；

Fig. 4 is 40 times of torque rate of change simulation waveforms in amorphous band Coiling Tension Control method provided by the present invention；

Wherein：1- chill rolls, 2- takers-ins, 3- pressure rollers, 4- carrying rollers.

Specific embodiment

Core of the invention is to provide a kind of amorphous band Coiling Tension Control method and device, can control amorphous band The constant tension in coiling process, solves the problems, such as tension fluctuation in amorphous band coiling process, so that the amorphous for rolling Band is closely neat.

In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description The present invention is described in further detail.

Refer to Fig. 1 and the device that Fig. 2, Fig. 1 are amorphous band Coiling Tension Control provided by the present invention is a kind of specific The structural representation of implementation method.

In this embodiment, amorphous band Coiling Tension Control method is comprised the following steps：

Step S1：When setting time interval is reached, the current rotating speed n of chill roll 1 is determined₀, and takers-in 2 is current Rotating speed n₁；

Step S2：According to the diameter D of the chill roll 1 being obtained ahead of time₀, and n₀And n₁, determine the current torque of takers-in 2 M_e, specifically, the diameter D of chill roll 1₀Immobilized during amorphous band is batched, therefore, the diameter D of chill roll 1₀For Fixed value can be with direct access；

Step S3：By the current torque M of takers-in 2_eSetting torque with takers-in 2 is contrasted, wherein, takers-in 2 Set torque as standard torque, i.e. the torque of the takers-in 2 when the tension force of amorphous band is optimum tension is by fitting Draw；

Step S4：According to current torque M_eWith the rotating speed n that the comparing result of setting torque adjusts takers-in 2₁, by takers-in 2 Rotating speed n₁Adjust consistent with setting torque to the torque of the takers-in 2 for calculating.

The control method, by setting time interval, being calculated after the rotating speed for obtaining chill roll 1 and takers-in 2 and being batched The current torque M of roller 2_e, and judge the current torque M of takers-in 2_eThe rotating speed of takers-in 2 is adjusted with the deviation of setting torque n₁, so that the torque M of takers-in 2_eNumerical value with setting torque is identical, due to the torque M of takers-in 2_eWith the tension force of amorphous band Proportional, therefore, by the rotating speed n for adjusting takers-in 2₁So that the torque M of takers-in 2_eLevel off to setting torque, enter And the constant tension of amorphous band is realized, and effectively solves the problems, such as tension fluctuation in amorphous band coiling process, realize batching The constant tensile control of journey, so that the band for rolling is rolled tightly and neat.

Further, step is " according to the diameter D of the chill roll 1 being obtained ahead of time₀, and n₀And n₁, determine the current of takers-in 2 Torque M_e" be specially：

It is determined that the speed reducing ratio k of current chill roll 1₀With the speed reducing ratio k of takers-in 2₁, specifically, the speed reducing ratio k of chill roll 1₀, Can be calculated with current rotating speed according to the rotating speed of the chill roll 1 obtained in a upper prefixed time interval, likewise, batching The speed reducing ratio k of roller 2₁Can be calculated with current rotating speed according to the rotating speed of the takers-in 2 obtained in a upper prefixed time interval Go out.

The current torque M of takers-in 2 is determined according to below equation_e：

Wherein：T is amorphous band tension value, D₀It is the diameter of chill roll 1, D₁It is the diameter of takers-in 2, n₀For 1 turn of chill roll Speed, n₁It is the rotating speed of takers-in 2, k₀It is the speed reducing ratio of chill roll 1, k₁It is the speed reducing ratio of takers-in 2.

Specifically, the torque M of above-mentioned takers-in 2_eComputing formula derivation it is as follows：

Amorphous band is sent out by chill roll 1, is finally wound by takers-in 2 through pressure roller 3, carrying roller 4, the linear velocity of chill roll 1 It is v₀, the linear velocity of takers-in 2 is v₁, it is that safeguards system is normally run in the initial stage of batching sets up hypertension, v need to be made₁＞ v₀, amorphous band can produce elastic deformation because of pressure, understand that the expression formula of strip coiling tension force T is as follows by Hooke's law：

In formula：S is the cross-sectional area of amorphous band, and L is distance of the chill roll 1 to takers-in 2, and σ is the elasticity of amorphous ribbon Modulus, t sets up the tension force time for system.

Mathematical Modeling is batched by above-mentioned amorphous band as can be seen that strip coiling is chill roll 1 and the linear differential of takers-in 2 Integral relation, it is clear that as long as growth v over time₀＜ v₁, the coiling tension of amorphous band can increase always, normal conditions The linear velocity of lower chill roll 1 is v for steady state value₀It is constant, set the linear velocity v of takers-in 2₀=π D₀n₀, the D in work is batched₁By It is cumulative big, if n₀Keep constant, then the linear velocity v of takers-in 2₁To constantly increase；From Hooke's law, coiling tension T with D₁Constantly increase, therefore the tension force torque of takers-in 2 will also increase M_T=TD₁/ 2, therefore in the coiling process of amorphous band, And after tension force is set up, need in time adjust the linear velocity v of takers-in 2₁It is constant, so that it is guaranteed that coiling tension is constant.

Torque equilibrium equation on the motor shaft of takers-in 2 is：

M_e=M_T+M_D+M₀ (2)

In formula：M_eIt is motor electromagnetic torque, T is to be built tension force, M_TIt is tension force torque, D₁It is the diameter of takers-in 2, M_DFor Dynamic torque, k₁It is the gear ratio of takers-in 2, M₀It is no-load torque；

Can be drawn by formula (2), (3)：

Theoretically analyze, due to k₁It is constant, no-load torque is ignored in practice, if after making removing dynamic torque Electromagnetic torque be directly proportional to the coil diameter of takers-in 2, then tension force T keep it is constant.Thus dynamic torque need to only be calculated with volume in real time Footpath can indirectly realize the identical tension for batching, and constant tensile control is switched into direct torque.

In the coiling process of takers-in 2, due to coil diameter D₁Gradually increasing, corresponding rotary inertia increases also with coil diameter Greatly, the change of dynamic force moment is had, therefore need to be to the rotary inertia compensation of take-up roll change, referred to as dynamic moment compensation.Electricity Machine dynamic force moment M_D：

Wherein：J is amorphous ribbon rotary inertia, and w is the angular speed of takers-in 2, D₁It is reeling radius, is the take-up roll anglec of rotation Degree, g is acceleration of gravity, and n is motor speed.

Can be obtained by formula (5), (6), (7)：

In coiling process, one circle of work of takers-in 2 need to be only considered, i.e.,It is 0-360 ° of change, i.e. amorphous ribbon volume often increases by one Layer change, then increased rotary inertia be calculated as follows：

Wherein：A is amorphous thin ribbon width, is amorphous thin ribbon density, and h is amorphous thin ribbon thickness, due to amorphous thin ribbon thickness It is micron order, adds k₁Speed reducing ratio simplified formula is：

G can be gone out by increased weight accumulation calculating in the unit interval, the percentage speed variation of acceleration also available units time Calculate, therefore its dynamic torque can be obtained.

In the Coiling Tension Control system of amorphous band, speed, tension force torque and dynamic that real-time coil diameter influence is batched Torque compensation, therefore it is the Important Parameters for influenceing constant tension to obtain accurate real-time coil diameter.It is more common that coil diameter is calculated at present Method is main by calculating method and to wait discharge method, here from etc. discharge method, it is so-called that to wait discharge method be exactly within the unit interval, by cold But the length of the amorphous band that roller 1 sprays should be equal with the length of the amorphous band that takers-in 2 is batched.

From formula (1), coiling tension is the linear velocity v of chill roll 1₀With the linear velocity v of takers-in 2₁Poor integral relation, Typically with the linear velocity v of chill roll 1₀On the basis of, the linear velocity v of takers-in 2₁With the linear velocity v of chill roll 1₀Change, sets up with tension force The latter two linear velocities answer equal i.e. v₀=v₁, then coiling tension holding is constant, then have below equation：

v₀=v₁ (11)

Can obtain motor torque by formula (2), (3), (10) and (14) is：

Further, step is " according to current torque M_eWith the rotating speed n that the comparing result of setting torque adjusts takers-in 2₁" specific For：

According to current torque M_eWith setting torque mathematic interpolation takers-in 2 rotation speed change amount Δ n, and according to rotating speed become Change amount Δ n adjusts the rotating speed n of takers-in 2₁。

More specifically, according to formula (15) and M_eWith the difference of setting torque, the rotating speed change of takers-in 2 can be calculated Change amount Δ n.

Certainly, step is " according to current torque M_eWith the rotating speed n that the comparing result of setting torque adjusts takers-in 2₁" can also Specially：

As current torque M_eDuring more than setting torque, increase the rotating speed n of takers-in 2₁；As current torque M_eTurn less than setting During square, the rotating speed n of takers-in 2 is reduced₁。

The above-mentioned rotating speed n to takers-in 2₁Adjustment, can be real-time regulation, it is of course also possible to for interval Preset Time When regulation, i.e., just carried out at interval of Preset Time the step of provided in a present embodiment, with realize to takers-in 2 turn Fast n₁Stabilization adjustment.

In addition to above-mentioned amorphous band Coiling Tension Control method, present invention also offers a kind of amorphous band coiling tension control Device processed.

The amorphous band Coiling Tension Control device includes：

Rotating speed determining module, for when setting time interval is reached, determining the current rotating speed n of chill roll 1₀, Yi Jijuan Take the current rotating speed n of roller 2₁；

Torque determination module, for the diameter D according to the chill roll 1 being obtained ahead of time₀, and n₀And n₁, determine takers-in 2 Current torque M_e；

Contrast module, for by the current torque M of takers-in 2_eSetting torque with takers-in 2 is contrasted；

Rotational speed regulation module, for according to current torque M_eWith the rotating speed that the comparing result of setting torque adjusts takers-in 2 n₁。

Further, torque determination module is additionally operable to：

It is determined that the speed reducing ratio k of current chill roll 1₀With the speed reducing ratio k of takers-in 2₁；Specifically, the speed reducing ratio k of chill roll 1₀, Can be calculated with current rotating speed according to the rotating speed of the chill roll 1 obtained in a upper prefixed time interval, likewise, batching The speed reducing ratio k of roller 2₁Can be calculated with current rotating speed according to the rotating speed of the takers-in 2 obtained in a upper prefixed time interval Go out.

The current torque M of takers-in 2 is determined according to below equation_e：

Wherein：T is amorphous band tension value, D₀It is the diameter of chill roll 1, D₁It is the diameter of takers-in 2, n₀For 1 turn of chill roll Speed, n₁It is the rotating speed of takers-in 2, k₀It is the speed reducing ratio of chill roll 1, k₁It is the speed reducing ratio of takers-in 2.

The torque M of above-mentioned takers-in 2_eThe derivation of computing formula, can be with the tension force provided in parameter the present embodiment Derivation in control method, will not be repeated here.

Further, rotational speed regulation module is additionally operable to：

According to current torque M_eWith setting torque mathematic interpolation takers-in 2 rotation speed change amount Δ n, and according to rotating speed become Change amount Δ n adjusts the rotating speed n of takers-in 2₁, specifically, rotation speed change amount Δ n is again by current torque M_eTurn with setting The difference of square, and calculated according to formula (15).

Certainly, torque determination module can be also used for：

As current torque M_eDuring more than setting torque, increase the rotating speed n of takers-in 2₁；As current torque M_eTurn less than setting During square, the rotating speed n of takers-in 2 is reduced₁.The above-mentioned rotating speed n to takers-in 2₁Adjustment, can be real-time regulation, certainly, also may be used Think the regulation during Preset Time of interval, i.e., just carried out at interval of Preset Time the step of provided in a present embodiment, with Realize to the rotating speed n to takers-in 2₁Stabilization adjustment.

Can be drawn by above formula, S7-300 controllers are communicated by PROFIBUS and receive G120 converter parameters r63 Chill roll 1 and the real-time rotating speed of the motor of takers-in 2 can be obtained, and then calculates amorphous ribbon volume real-time coil diameter.By dynamic coil diameter and Dynamic torque relatively accurately calculates motor torque.

Further, strip coiling system can approximately see a second-order system as, its corresponding general shape of transmission function Formula is：

Emulation experiment is made to system, in system emulation, using ramp generator as the dtc signal source of change, will be fuzzy PID controller and conventional PID control device compare research, simulation result referring to the drawings, it will be evident that obscuring from single width figure More preferably, dynamic property is more stable, and overshoot is small, and stable state accuracy is of a relatively high for the relatively common PID Assist forces of PID controller；It is right Be can be seen that after torque rate of change becomes big than two width figures, fuzzy controller has the function of parameter self-tuning, compared to Conventional PID control device still has preferable trace performance, and control effect is more preferable.

During the strip crawl winding of amorphous band, most start to be set up in the torque amplitude limit mode under velocity mode Tension force, switchs to the speed limiting control model under torque mode, in mode handover procedure, amorphous band after tension force is set up Tension force has relatively large deviation with setting value in a short period of time, and the integration of controller can be caused to accumulate, and causing torque to exceed allows Limit control, cause the larger overshoot of coiling system, or even concussion.Therefore the fuzzy PID regulation that the system using integration separate Device is controlled to tension system：When torque detection value and setting value deviation are larger, cancel integral action, in order to avoid integral action Increase stability of a system reduction, overshoot；When torque detection value is close to set-point, integration control is introduced, it is quiet to eliminate State error, improves control accuracy.

After programme-control starts, the functional block OB35 that breaks in the circulating cycle carries out real-time data acquisition and calculates, collection volume Footpath calculating torque, real-time current, calculating torque error and error rate are read by frequency converter, and related change is stored in after obfuscation In amount, by inquiring about two dimension fuzzy controlled output table search correspondence fuzzy output；By the pid parameter of fuzzy output and last time PID Parameter is overlapped, and decides whether to separate integral term according to error amount size, and output parameter finally is passed into S7-300PID Control module is adjusted.

Because amorphous thin ribbon has different size, the difference and the non-linear change of winding process coil diameter of strip width and thickness Change, winding process has the characteristic such as non-linear, time-varying, delayed, and regulatory PID control and varied tention direct torque can not be adjusted voluntarily With Optimal Parameters configuration, present invention introduces intelligent control algorithm, realized using fuzzy controller online to closed loop control parameters Regulation, makes system have preferable robustness.

Certainly, control for amorphous band tension force is it is also contemplated that use ANN Control, it is not limited to this reality Apply the control method given by example.

Amorphous band Coiling Tension Control method and device provided by the present invention is described in detail above.Herein In apply specific case principle of the invention and implementation method be set forth, the explanation of above example is only intended to side Assistant solves the method for the present invention and its core concept.It should be pointed out that for those skilled in the art, not On the premise of departing from the principle of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into In the protection domain of the claims in the present invention.

Claims (8)

1. a kind of amorphous band Coiling Tension Control method, it is characterised in that comprise the following steps：

When setting time interval is reached, the current rotating speed n of the chill roll is determined₀, and the takers-in current rotating speed n₁；

According to the diameter D of the chill roll being obtained ahead of time₀, and the n₀And n₁, determine the current torque M of the takers-in_e；

By the current torque M of the takers-in_eSetting torque with the takers-in is contrasted；

According to the current torque M_eWith the rotating speed n that the comparing result of the setting torque adjusts the takers-in₁。

2. the method for amorphous band Coiling Tension Control according to claim 1, it is characterised in that the step " according to The diameter D of the chill roll being obtained ahead of time₀, and the n₀And n₁, determine the current torque M of the takers-in_e" be specially：

Determine the speed reducing ratio k of presently described chill roll₀With the speed reducing ratio k of the takers-in₁；

The current torque M of the takers-in is determined according to below equation_e：

$M_e=T\frac{n_0{D}_0}{2n_1{k}_2}+\frac{k_1{{\mathrm{GD}}_0}^2{n_0}^2}{375{n_1}^2{k_2}^2}\·\frac{dn}{dt}$

Wherein：T is amorphous band tension value, D₀It is cooling roller diameter, D₁To batch roller diameter, n₀It is chill roll rotating speed, n₁It is volume Take roller rotating speed, k₀It is chill roll speed reducing ratio, k₁It is takers-in speed reducing ratio.

3. the method for amorphous band Coiling Tension Control according to claim 2, it is characterised in that the step " according to The current torque M_eWith the rotating speed n that the comparing result of the setting torque adjusts the takers-in₁" be specially：

According to the current torque M_eWith it is described setting torque mathematic interpolation described in takers-in rotation speed change amount Δ n, and according to The rotation speed change amount Δ n adjusts the rotating speed n of the takers-in₁。

4. the method for amorphous band Coiling Tension Control according to claim 2, it is characterised in that the step " according to The current torque M_eWith the rotating speed n that the comparing result of the setting torque adjusts the takers-in₁Specially：

As the current torque M_eDuring more than the setting torque, increase the rotating speed n of the takers-in₁；As the current torque M_e During less than the setting torque, the rotating speed n of the takers-in is reduced₁。

5. a kind of amorphous band Coiling Tension Control device, it is characterised in that including：

Rotating speed determining module, for when setting time interval is reached, determining the current rotating speed n of the chill roll₀, and it is described The current rotating speed n of takers-in₁；

Torque determination module, for the diameter D according to the chill roll being obtained ahead of time₀, and the n₀And n₁, it is determined that described The current torque M of takers-in_e；

Contrast module, for by the current torque M of the takers-in_eSetting torque with the takers-in is contrasted；

Rotational speed regulation module, for according to the current torque M_eComparing result with the setting torque adjusts the takers-in Rotating speed n₁。

6. the device of amorphous band Coiling Tension Control according to claim 5, it is characterised in that the torque determines mould Block is additionally operable to：

Determine the speed reducing ratio k of presently described chill roll₀With the speed reducing ratio k of the takers-in₁；

The current torque M of the takers-in is determined according to below equation_e：

$M_e=T\frac{n_0{D}_0}{2n_1{k}_2}+\frac{k_1{{\mathrm{GD}}_0}^2{n_0}^2}{375{n_1}^2{k_2}^2}\·\frac{dn}{dt}$

Wherein：T is amorphous band tension value, D₀It is cooling roller diameter, D₁To batch roller diameter, n₀It is chill roll rotating speed, n₁It is volume Take roller rotating speed, k₀It is chill roll speed reducing ratio, k₁It is takers-in speed reducing ratio.

7. the device of amorphous band Coiling Tension Control according to claim 6, it is characterised in that the rotational speed regulation mould Block is additionally operable to：

According to the current torque M_eWith it is described setting torque mathematic interpolation described in takers-in rotation speed change amount Δ n, and according to The rotation speed change amount Δ n adjusts the rotating speed n of the takers-in₁。

8. the device of amorphous band Coiling Tension Control according to claim 6, it is characterised in that the torque determines mould Block is additionally operable to：

As the current torque M_eDuring more than the setting torque, increase the rotating speed n of the takers-in₁；As the current torque M_e During less than the setting torque, the rotating speed n of the takers-in is reduced₁。