CN105170650B - Tension applying apparatus and method in a kind of metal polar thin belt operation of rolling - Google Patents
Tension applying apparatus and method in a kind of metal polar thin belt operation of rolling Download PDFInfo
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- CN105170650B CN105170650B CN201510516299.0A CN201510516299A CN105170650B CN 105170650 B CN105170650 B CN 105170650B CN 201510516299 A CN201510516299 A CN 201510516299A CN 105170650 B CN105170650 B CN 105170650B
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Abstract
Tension applying apparatus and method in a kind of metal polar thin belt operation of rolling, reversing switch is provided between torque motor and transformer, before rolling, when rolled piece inlet thickness measured value is more than setting value, when i.e. rolled piece thickness is thicker, rolling mill transmission system mechanical resistance is not turned on position of commutating less than the backward pull under the thickness, then reversing switch, posttension force motor carry out after powered up it is conventional rotate forward, now backward pull is equal to rolling mill transmission system mechanical resistance and posttension force motor and exports tension force sum；When rolled piece inlet thickness measured value is less than setting value, i.e. rolled piece thinner thickness when, rolling mill transmission system mechanical resistance is more than the backward pull under the thickness, then reversing switch opens commutation position, posttension force motor is rotated backward after powered up, and now backward pull is equal to rolling mill transmission system mechanical resistance and exports the difference of tension force with posttension force motor, and then realizes backward pull from 0 target for starting, and backward pull whole process continuously adjustabe, so as to effectively prevent the generation of belt phenomenon.
Description
Technical field
The invention belongs to strip in razor-thin rolling technical field, in more particularly to a kind of metal polar thin belt operation of rolling, tension force is applied
Feeder apparatus and method.
Background technology
In recent years, with micro-fabrication technology and microsecond delay technology fast development, metal, alloy and metal-base composites
Strip in razor-thin demand is increasing, and these strip in razor-thin are widely used to microelectronic industry, micro manufacturing industry, instrument and meter industry
With micro electronmechanical industry etc..
The strip in razor-thin of metal, alloy and metal-base composites is obtained by rolling with (stock) tension more, and suitable
Power not only contributes to that rolled piece is thinning, also helps the raising of production efficiency, and ensures the important means of strip in razor-thin plate shape, because
This, production of the accurate tension force to strip in razor-thin has very important significance.
In the strip in razor-thin operation of rolling, forward and backward tension force can be applied using torque motor to rolled piece, but, mill drive system
System will be inevitably generated mechanical resistance, and mechanical resistance includes that torque motor rotor rotary resistance, reducer gear group are nibbled
Transmission resistance and working roll roll neck and bearing block resistance to sliding etc. are closed, due to the presence of mechanical resistance, is consistently greater than backward pull
It is to start more than 0 numerical value from one equal to the change curve of mechanical resistance, i.e. backward pull, and initial backward pull is equal to and rolls
The mechanical resistance of machine transmission system, which is as shown in Figure 3.Therefore, when rolled piece is thinned to certain thickness, easily because backward pull is excessive
Cause the generation of belt phenomenon, force the operation of rolling to terminate.For this purpose, needing a kind of full new tension badly applies scheme, after can making
Tension force starts from 0 and whole continuously adjustabe, its as described in Figure 4, so as to avoid the generation of belt phenomenon.
The content of the invention
For the problem that prior art is present, the present invention provides tension applying apparatus in a kind of metal polar thin belt operation of rolling
And method, backward pull can be realized from the beginning of 0, and meet the whole continuously adjustabe of tension force, be prevented effectively from the generation of belt phenomenon.
To achieve these goals, the present invention is adopted the following technical scheme that：Tension force in a kind of metal polar thin belt operation of rolling
Bringing device, including main control computer, operating desk, PLC, the first torque motor, the second torque motor, the first reversing switch,
Two reversing switches, the first transformer and the second transformer；The man-machine boundary of tension control system is provided with the main control computer
Face, main control computer are connected with operating desk by PLC, and the positive activate switch of rolling and rolling are respectively arranged with operating desk
Reverse starting is switched；Mono- tunnels of the PLC pass sequentially through frequency converter, the first transformer, the first reversing switch and the first torque motor
Control end be connected, another roads of PLC pass sequentially through frequency converter, the second transformer, the second reversing switch and the second torque motor
Control end is connected；First torque motor carries out steering exchange by the first reversing switch, and second torque motor leads to
Crossing the second reversing switch carries out steering exchange；First torque motor adjusts tension force output by the first transformer, and described the
Two torque motors adjust tension force output by the second transformer.
Some data entry fields are provided with the tension control system man-machine interface of the main control computer, the data are defeated
Entering domain includes rolled piece material numbering, rolled piece width, rolled piece inlet thickness, rolled piece exit thickness, toe-out force coefficient and backward pull system
Number.
When rolling forward direction activate switch on the operating desk is opened, first torque motor is set to toe-out force motor,
Second torque motor is set to posttension force motor.
During rolling reverse starting switch open on the operating desk, second torque motor is set to toe-out force motor,
First torque motor is set to posttension force motor.
Using the tension force applying method of tension applying apparatus in the described metal polar thin belt operation of rolling, including following step
Suddenly：
Step one：Measurement rolled piece is in tensile strength during different-thickness, sets up the tensile strength of rolled piece with drafts
Change curve, while the Regression Equations set up between tensile strength and drafts；
Step 2：Carry out input voltage-tension calibration respectively to the first torque motor and the second torque motor, and set up
Input voltage-tension calibration the curve of one torque motor, the second torque motor, while setting up the first torque motor, the second torque
Regression Equations between the input voltage and tension force of motor；
Step 3：The input voltage of the first torque motor and the second torque motor is set to into 0, measurement respectively makes the first power
Torque motor and the second torque motor carry out pulling force during uniform rotation, the pulling force for now measuring correspond to respectively the first torque motor and
The mechanical resistance of the second torque motor；
Step 4：Compensate using the pulling force for measuring as the mechanical resistance of the first torque motor and the second torque motor
Value, and which is substituted into Regression Equations between the first torque motor, the input voltage of the second torque motor and tension force respectively
In, so as to obtain consider mechanical resistance compensate when the first torque motor, between the input voltage of the second torque motor and tension force
Regression Equations, the Regression Equations as posttension force motor input voltage calculate when reference equation；
Step 5：Measurement rolled piece width and rolled piece inlet thickness, estimate rolled piece exit thickness, by rolled piece inlet thickness
Magnitude relationship between measured value and setting value, sets the state of the first reversing switch and the second reversing switch, be specifically divided into
Lower two kinds of situations：
1. the first torque motor is set to toe-out force motor, and the second torque motor is set to posttension force motor, when rolled piece entrance thickness
When the measured value of degree is more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece entrance
When the measured value of thickness is less than setting value, the first reversing switch is not turned on position of commutating, and the second reversing switch opens commutation position；
2. the first torque motor is set to posttension force motor, and the second torque motor is set to toe-out force motor, when rolled piece entrance thickness
When the measured value of degree is more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece entrance
When the measured value of thickness is less than setting value, the first reversing switch opens commutation position, and the second reversing switch is not turned on position of commutating；
Step 6：It is input into data below in data entry field in main control computer man-machine interface respectively：Rolled piece material
Numbering, rolled piece width, rolled piece inlet thickness, rolled piece exit thickness, toe-out force coefficient and posttension force coefficient, when rolled piece inlet thickness
Measured value when being more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece entrance thickness
When the measured value of degree is less than setting value, the first reversing switch is not turned on position of commutating, and the second reversing switch opens commutation position；
Step 7：Pre-pressing force is applied to rolled piece, the rolling forward direction activate switch on operating desk is opened, now the first torque
Motor is set to toe-out force motor, and the second torque motor is set to posttension force motor, and main control computer is according to each data in man-machine interface
Curvilinear regression side between the input voltage and tension force of the first torque motor set up in the data and step 2 in input domain
Journey, calculates the input voltage value needed for the first torque motor；Main control computer is according in each data entry field in man-machine interface
Data and step 4 in Regression Equations between the input voltage of the second torque motor set up and tension force, calculate
Input voltage value needed for second torque motor, and input voltage value is input in the first torque motor by the first transformer,
And be input in the second torque motor by the second transformer, and then forward pull, Yi Jitong are set up by the first torque motor
Cross the second torque motor and set up backward pull；So as to carry out under the forward pull and backward pull set up N passages (N=1,2,
3) rolling；
Step 8：After N passages (N=1,2,3) rolling is completed, control strip in razor-thin milling train is shut down, Ran Hou
It is input into data below in data entry field in main control computer man-machine interface respectively：Rolled piece width, rolled piece inlet thickness, rolled piece
Exit thickness, toe-out force coefficient and posttension force coefficient, and above-mentioned data be complete N passages (N=1,2,3) rolling
Rolled piece data afterwards, when the measured value of rolled piece inlet thickness is more than setting value, the first reversing switch and the second reversing switch are equal
It is not turned on position of commutating；When the measured value of rolled piece inlet thickness is less than setting value, the first reversing switch opens commutation position, the
Two reversing switches are not turned on position of commutating；
Step 9：Pre-pressing force is applied to rolled piece, the rolling reverse starting switch on operating desk is opened, now the second torque
Motor is set to toe-out force motor, and the first torque motor is set to posttension force motor, and main control computer is according to each data in man-machine interface
Curvilinear regression side between the input voltage and tension force of the first torque motor set up in the data and step 4 in input domain
Journey, calculates the input voltage value needed for the first torque motor；Main control computer is according in each data entry field in man-machine interface
Data and step 2 in Regression Equations between the input voltage of the second torque motor set up and tension force, calculate
Input voltage value needed for second torque motor, and input voltage value is input in the first torque motor by the first transformer,
And be input in the second torque motor by the second transformer, and then forward pull, Yi Jitong are set up by the second torque motor
Cross the first torque motor and set up backward pull；So as to carry out under the forward pull and backward pull set up N+1 passages (N=1,2,
3) rolling；
Step 10：Five～step 9 of repeat step, until rolled piece is thinned to target thickness.
Beneficial effects of the present invention：
The present invention starts from 0 and whole continuously adjustabe to realize backward pull, in the torque motor and transformer of the present invention
Between be provided with reversing switch, before the rolling, when rolled piece inlet thickness measured value be more than setting value when, i.e. rolled piece thickness is thicker
When, now rolling mill transmission system mechanical resistance is not turned on position of commutating, posttension less than the backward pull under the thickness, then reversing switch
Force motor carry out after powered up it is conventional rotate forward, now backward pull is equal to rolling mill transmission system mechanical resistance and backward pull electricity
Machine exports tension force sum；When rolled piece inlet thickness measured value be less than setting value when, i.e., rolled piece thinner thickness when, now milling train pass
Dynamic system mechanics resistance opens commutation position more than the backward pull under the thickness, then reversing switch, and posttension force motor is after powered up
Rotated backward, now backward pull is equal to rolling mill transmission system mechanical resistance and exports the difference of tension force with posttension force motor, and then
Realize backward pull from 0 start target, and backward pull whole process continuously adjustabe, so as to effectively prevent the generation of belt phenomenon.
The present invention is accurately controlled forward and backward tension force, and can be precisely to find one beneficial to rolled piece is thinning, production efficiency is improved
And ensure that the forward and backward tension force of strip in razor-thin plate shape provides possible.
The present invention can obtain permanent forward and backward tensile stress rolling by arranging toe-out force coefficient and posttension force coefficient, different when considering
Speed than with roll-force after, suitable toe-out force coefficient and posttension force coefficient can be found by calculating, obtaining should most useful for thinning
Power state, is greatly improved production efficiency.
Description of the drawings
Fig. 1 is the strip in razor-thin rolling mill structure schematic diagram for being provided with tension applying apparatus of the present invention；
Fig. 2 is the input voltage-tension calibration schematic diagram of first, second torque motor；
Fig. 3 is the input voltage-backward pull graph of relation of torque motor when not considering rolling mill transmission system mechanical resistance；
Fig. 4 is the input voltage-backward pull graph of relation of torque motor when considering rolling mill transmission system mechanical resistance；
Fig. 5 is the input voltage-tension calibration curve map of the first torque motor；
Fig. 6 is the input voltage-tension calibration curve map of the second torque motor；
Fig. 7 is the change curve of the tensile strength with drafts of rolled piece；
In figure, 1-very thin hoop mill, 2-main control computer, 3-operating desk, 4-PLC, the 5-the first torque motor, 6-
Second torque motor, the 7-the first reversing switch, the 8-the second reversing switch, the 9-the first transformer, the 10-the second transformer,
11-the first reel, the 12-the second reel, the 13-the first jockey pulley, the 14-the second jockey pulley, 15-rolled piece, 16-upper support
Roller, 17-bottom working roll, 18-tension and compression dynamometer, 19-jockey pulley, 20-transformer, 21-torque motor.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, tension applying apparatus in a kind of metal polar thin belt operation of rolling, including main control computer 2, operating desk
3rd, PLC4, the first torque motor 5, the second torque motor 6, the first reversing switch 7, the second reversing switch 8, the first transformer 9 and
Second transformer 10；Tension control system man-machine interface is provided with the main control computer 2, main control computer 2 passes through
PLC4 is connected with operating desk 3, and the positive activate switch of rolling and rolling reverse starting switch are respectively arranged with operating desk 3；
Mono- tunnels of the PLC4 pass sequentially through the control end phase of frequency converter, the first transformer 9, the first reversing switch 7 and the first torque motor 5
Even, another roads of PLC4 pass sequentially through the control end of frequency converter, the second transformer 10, the second reversing switch 8 and the second torque motor 6
It is connected；First torque motor 5 carries out steering exchange by the first reversing switch 7, and second torque motor 6 is by the
Two reversing switches 8 carry out steering exchange；First torque motor 5 adjusts tension force by the first transformer 9 and exports, and described second
Torque motor 6 adjusts tension force output by the second transformer 10.
Some data entry fields, the data are provided with the tension control system man-machine interface of the main control computer 2
Input domain includes rolled piece material numbering, rolled piece width, rolled piece inlet thickness, rolled piece exit thickness, toe-out force coefficient and backward pull
Coefficient.
When rolling forward direction activate switch on the operating desk 3 is opened, first torque motor 5 is set to forward pull electricity
Machine, second torque motor 6 are set to posttension force motor.
During rolling reverse starting switch open on the operating desk 3, second torque motor 6 is set to forward pull electricity
Machine, first torque motor 5 are set to posttension force motor.
In the present embodiment, rolled piece 15 is 304 stainless steel bands, and rolled piece width is 50mm, and initial rolled piece thickness is 488 μm, mesh
Mark rolled piece thickness is 3 μm.
Using the tension force applying method of tension applying apparatus in the described metal polar thin belt operation of rolling, including following step
Suddenly：
Step one：Measurement rolled piece 15 be in different-thickness when (in the present embodiment be respectively 488 μm, 388 μm, 300 μm, 243
μm, 178 μm, 136 μm, 90 μm, 45 μm, 36 μm, 20 μm and 15 μm) tensile strength, set up the tensile strength of rolled piece 15 with pressure
The change curve of lower amount, which is as shown in fig. 7, while the Regression Equations set up between tensile strength and drafts, curve time
Return equation specific as follows：
f1=-2.61 × 10-3x2+ 2.75x+786 (drafts≤352 μm)
f1=-5.3000 × 10-4x3+0.6050x2- 231.80x+31156 (352 μm of drafts ＞)
In formula, f1For tensile strength, x is drafts；
Step 2：Input voltage-tension calibration is carried out to the first torque motor 5 and the second torque motor 6 respectively, its demarcation
Schematic diagram as shown in Fig. 2 and set up the input voltage-tension calibration curve of the first torque motor 5, the second torque motor 6, which is such as
Shown in Fig. 5, Fig. 6, while the curvilinear regression set up between the first torque motor 5, the input voltage of the second torque motor 6 and tension force
Equation, Regression Equations are specific as follows：
n1=0.01247v1 2+1.100v1-44.233
n2=0.01368v2 2+1.418v2-54.852
In formula, v1For the input voltage of the first torque motor 5, v2For the input voltage of the second torque motor 6, n1For first
The tension force of the output of torque motor 5, n2For the tension force of the output of the second torque motor 6；
Step 3：The input voltage of the first torque motor 5 and the second torque motor 6 is set to into 0, measurement respectively makes first
Torque motor 5 and the second torque motor 6 carry out pulling force F during uniform rotation1And F2, the pulling force F for now measuring1And F2It is right respectively
The mechanical resistance of the first torque motor 5 and the second torque motor 6 is answered, specially：F1=45N, F2=55N；
Step 4：By the pulling force F for measuring1And F2Respectively as the machinery resistance of the first torque motor 5 and the second torque motor 6
Force compensating value, and which is substituted into curve between the first torque motor 5, the input voltage of the second torque motor 6 and tension force respectively
In regression equation, so as to obtain consider mechanical resistance compensate when the first torque motor 5, the second torque motor 6 input voltage
Regression Equations between tension force, the reference side when Regression Equations are calculated as the input voltage of posttension force motor
Journey, Regression Equations are specific as follows：
n3=0.01247v1 2+1.100v1+0.767
n4=0.01368v2 2+1.418v2+0.148
In formula, v1For the input voltage of the first torque motor 5, v2For the input voltage of the second torque motor 6, n3To consider
The tension force of the output of the first torque motor 5, n when mechanical resistance is compensated4To consider that the second torque motor 6 is exported during mechanical resistance compensation
Tension force；
Step 5：First rolled piece 15 is installed on very thin hoop mill 1, it is 50mm and rolled piece entrance then to measure rolled piece width
Thickness is 488 μm, and estimation rolled piece exit thickness is 388 μm, by big between the measured value and setting value of rolled piece inlet thickness
Little relation, sets the state of the first reversing switch 7 and the second reversing switch 8, is specifically divided into following two situations：
1. the first torque motor 5 is set to toe-out force motor, and the second torque motor 6 is set to posttension force motor, when rolled piece entrance
When the measured value of thickness is more than setting value, the first reversing switch 7 and the second reversing switch 8 are not turned on position of commutating；Work as rolled piece
When the measured value of inlet thickness is less than setting value, the first reversing switch 7 is not turned on position of commutating, and the second reversing switch 8 is opened and arrived
Commutation position；
2. the first torque motor 5 is set to posttension force motor, and the second torque motor 6 is set to toe-out force motor, when rolled piece entrance
When the measured value of thickness is more than setting value, the first reversing switch 7 and the second reversing switch 8 are not turned on position of commutating；Work as rolled piece
When the measured value of inlet thickness is less than setting value, the first reversing switch 7 opens commutation position, and the second reversing switch 8 is not turned on
Commutation position；
Step 6：Data below is input into respectively in data entry field in 2 man-machine interface of main control computer：Rolled piece material
Numbering be G304, rolled piece width be 50mm, rolled piece inlet thickness be 488 μm, rolled piece exit thickness be 388 μm, toe-out force coefficient
Be 0.1 and posttension force coefficient be 0.1, when rolled piece inlet thickness measured value be more than setting value when, the first reversing switch 7 and second
Reversing switch 8 is not turned on position of commutating；When the measured value of rolled piece inlet thickness is less than setting value, the first reversing switch 7 is opened
Commutation position is opened, the second reversing switch 8 is not turned on position of commutating；In the present embodiment, the first torque motor 5 is set to forward pull electricity
Machine, the second torque motor 6 are set to posttension force motor, and the measured value of rolled piece inlet thickness is more than 10 μm of setting value, therefore first
Reversing switch 7 and the second reversing switch 8 are not turned on position of commutating；
Step 7：Pre-pressing force is applied to rolled piece 15, the rolling forward direction activate switch on operating desk 3 is opened, now first
Torque motor 5 is set to toe-out force motor, and the second torque motor 6 is set to posttension force motor, and main control computer 2 is according in man-machine interface
Curve between the input voltage and tension force of the first torque motor 5 set up in the data and step 2 in each data entry field
Regression equation, calculates the input voltage value needed for the first torque motor 5 and is respectively 352V；Main control computer 2 is according to man-machine boundary
Between the input voltage and tension force of the second torque motor 6 set up in the data and step 4 on face in each data entry field
Regression Equations, calculate the input voltage value needed for the second torque motor 6 and are respectively 335V, and input voltage value is by the
One transformer 9 is input in the first torque motor 5, and is input in the second torque motor 6 by the second transformer 10, and then
It is 1928N that forward pull is set up by the first torque motor 5, and sets up backward pull for 1985N by the second torque motor 6；From
And rolling (step in the present embodiment of N passages (N=1,2,3) is carried out under the forward pull and backward pull set up
Suddenly it is the 1st passage)；
Step 8：When completing, after N passages (N=1,2,3) are rolled, (in the present embodiment, the step is the 1st road
It is secondary), control strip in razor-thin milling train is shut down, then in the data entry field in 2 man-machine interface of main control computer respectively below input
Data：Rolled piece width is 50mm, rolled piece inlet thickness is 400 μm, rolled piece exit thickness is 300 μm, toe-out force coefficient is 0.1 and
Posttension force coefficient is 0.1, and above-mentioned data are after completing N passages (N=1,2,3) rolling and (in the present embodiment are
1st passage) rolled piece data, when the measured value of rolled piece inlet thickness is more than setting value, the first reversing switch 7 and the second commutation
Switch 8 is not turned on position of commutating；When the measured value of rolled piece inlet thickness is less than setting value, the first reversing switch 7 is opened and is arrived
Commutation position, the second reversing switch 8 are not turned on position of commutating；In the present embodiment, after completing the 1st passes, and rolled piece entrance is thick
The measured value of degree is more than 10 μm of setting value, therefore the first reversing switch 7 and the second reversing switch 8 are not turned on position of commutating；
Step 9：Pre-pressing force is applied to rolled piece 15, the rolling reverse starting switch on operating desk 3 is opened, now second
Torque motor 6 is set to toe-out force motor, and the first torque motor 5 is set to posttension force motor, and main control computer 2 is according in man-machine interface
Curve between the input voltage and tension force of the first torque motor 5 set up in the data and step 4 in each data entry field
Regression equation, calculates the input voltage value needed for the first torque motor 5 and is respectively 336V；Main control computer 2 is according to man-machine boundary
Between the input voltage and tension force of the second torque motor 6 set up in the data and step 2 on face in each data entry field
Regression Equations, calculate the input voltage value needed for the second torque motor 6 and are respectively 342V, and input voltage value is by the
One transformer 9 is input in the first torque motor 5, and is input in the second torque motor 6 by the second transformer 10, and then
It is 2016N that forward pull is set up by the second torque motor 6, and sets up backward pull for 1832N by the first torque motor 5；From
And the rolling that N+1 passages (N=1,2,3) are carried out under the forward pull and backward pull set up (should in the present embodiment
Step is the 2nd passage)；
Step 10：Five～step 9 of repeat step, until rolled piece 15 is thinned to 3 μm of target thickness.
Scheme in embodiment being not used to limits the scope of patent protection of the present invention, it is all without departing from carried out by the present invention etc.
Effect is implemented or is changed, and is both contained in the scope of the claims of this case.
Claims (5)
1. tension applying apparatus in a kind of metal polar thin belt operation of rolling, it is characterised in that：Including main control computer, operating desk,
PLC, the first torque motor, the second torque motor, the first reversing switch, the second reversing switch, the first transformer and the second transformation
Device；Tension control system man-machine interface is provided with the main control computer, main control computer is connected with operating desk by PLC
Connect, the positive activate switch of rolling and rolling reverse starting switch are respectively arranged with operating desk；Mono- tunnels of the PLC pass sequentially through
Frequency converter, the first transformer, the first reversing switch are connected with the control end of the first torque motor, and another roads of PLC pass sequentially through change
Frequency device, the second transformer, the second reversing switch are connected with the control end of the second torque motor；First torque motor passes through
First reversing switch carries out steering exchange, and second torque motor carries out steering exchange by the second reversing switch；Described
One torque motor adjusts tension force output by the first transformer, and it is defeated that second torque motor adjusts tension force by the second transformer
Go out.
2. tension applying apparatus in a kind of metal polar thin belt operation of rolling according to claim 1, it is characterised in that：Institute
The tension control system man-machine interface for stating main control computer is provided with some data entry fields, and the data entry field includes rolled piece
Material numbering, rolled piece width, rolled piece inlet thickness, rolled piece exit thickness, toe-out force coefficient and posttension force coefficient.
3. tension applying apparatus in a kind of metal polar thin belt operation of rolling according to claim 1, it is characterised in that：It is described
When rolling forward direction activate switch on operating desk is opened, first torque motor is set to toe-out force motor, second torque
Motor is set to posttension force motor.
4. tension applying apparatus in a kind of metal polar thin belt operation of rolling according to claim 1, it is characterised in that：It is described
During rolling reverse starting switch open on operating desk, second torque motor is set to toe-out force motor, first torque
Motor is set to posttension force motor.
5., using the tension force applying method of tension applying apparatus in the metal polar thin belt operation of rolling described in claim 1, which is special
Levy is to comprise the steps：
Step one：Measurement rolled piece is in tensile strength during different-thickness, sets up the change of the tensile strength with drafts of rolled piece
Curve, while the Regression Equations set up between tensile strength and drafts；
Step 2：Input voltage-tension calibration is carried out to the first torque motor and the second torque motor respectively, and sets up the first power
Input voltage-tension calibration the curve of torque motor, the second torque motor, while setting up the first torque motor, the second torque motor
Input voltage and tension force between Regression Equations；
Step 3：The input voltage of the first torque motor and the second torque motor is set to into 0, measurement respectively makes the first torque electricity
Machine and the second torque motor carry out pulling force during uniform rotation, and the pulling force for now measuring corresponds to the first torque motor and second respectively
The mechanical resistance of torque motor；
Step 4：Using the pulling force for measuring as the mechanical resistance offset of the first torque motor and the second torque motor, and
Which is substituted into respectively in the Regression Equations between the first torque motor, the input voltage of the second torque motor and tension force, from
And obtain the first torque motor when considering that mechanical resistance is compensated, the curve between the input voltage of the second torque motor and tension force
Regression equation, the reference equation when Regression Equations are calculated as the input voltage of posttension force motor；
Step 5：Measurement rolled piece width and rolled piece inlet thickness, estimate rolled piece exit thickness, by the actual measurement of rolled piece inlet thickness
Magnitude relationship between value and setting value, sets the state of the first reversing switch and the second reversing switch, is specifically divided into following two
The situation of kind：
1. the first torque motor is set to toe-out force motor, and the second torque motor is set to posttension force motor, when rolled piece inlet thickness
When measured value is more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece inlet thickness
Measured value be less than setting value when, the first reversing switch be not turned on commutate position, the second reversing switch open to commutation position；
2. the first torque motor is set to posttension force motor, and the second torque motor is set to toe-out force motor, when rolled piece inlet thickness
When measured value is more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece inlet thickness
Measured value be less than setting value when, the first reversing switch open to commutation position, the second reversing switch be not turned on commutate position；
Step 6：It is input into data below in data entry field in main control computer man-machine interface respectively：Rolled piece material numbering,
Rolled piece width, rolled piece inlet thickness, rolled piece exit thickness, toe-out force coefficient and posttension force coefficient, when the reality of rolled piece inlet thickness
When measured value is more than setting value, the first reversing switch and the second reversing switch are not turned on position of commutating；When rolled piece inlet thickness
When measured value is less than setting value, the first reversing switch is not turned on position of commutating, and the second reversing switch opens commutation position；
Step 7：Pre-pressing force is applied to rolled piece, the rolling forward direction activate switch on operating desk is opened, now the first torque motor
It is set to toe-out force motor, the second torque motor is set to posttension force motor, and main control computer is according to each data input in man-machine interface
Regression Equations between the input voltage and tension force of the first torque motor set up in the data and step 2 in domain, meter
Calculate the input voltage value needed for the first torque motor；Main control computer is according to the data in each data entry field in man-machine interface
And the Regression Equations between the input voltage and tension force of the second torque motor set up in step 4, calculate the second power
Input voltage value needed for torque motor, and input voltage value is input in the first torque motor by the first transformer, Yi Jitong
Cross the second transformer to be input in the second torque motor, and then forward pull is set up by the first torque motor, and pass through second
Torque motor sets up backward pull；So as to carry out the rolling of N passages under the forward pull and backward pull set up, wherein N=1,
2、3···；
Step 8：After N passes are completed, wherein N=1,2,3, control strip in razor-thin milling train are shut down, and are then leading
Data below is input into respectively in data entry field on control man-computer interface：Rolled piece width, rolled piece inlet thickness, rolled piece go out
Mouth thickness, toe-out force coefficient and posttension force coefficient, and above-mentioned data are the rolled piece data after completing N passes, wherein N
=1,2,3, when the measured value of rolled piece inlet thickness is more than setting value, the first reversing switch and the second reversing switch are equal
It is not turned on position of commutating；When the measured value of rolled piece inlet thickness is less than setting value, the first reversing switch opens commutation position, the
Two reversing switches are not turned on position of commutating；
Step 9：Pre-pressing force is applied to rolled piece, the rolling reverse starting switch on operating desk is opened, now the second torque motor
It is set to toe-out force motor, the first torque motor is set to posttension force motor, and main control computer is according to each data input in man-machine interface
Regression Equations between the input voltage and tension force of the first torque motor set up in the data and step 4 in domain, meter
Calculate the input voltage value needed for the first torque motor；Main control computer is according to the data in each data entry field in man-machine interface
And the Regression Equations between the input voltage and tension force of the second torque motor set up in step 2, calculate the second power
Input voltage value needed for torque motor, and input voltage value is input in the first torque motor by the first transformer, Yi Jitong
Cross the second transformer to be input in the second torque motor, and then forward pull is set up by the second torque motor, and pass through first
Torque motor sets up backward pull；So as to the rolling of N+1 passages, wherein N=are carried out under the forward pull and backward pull set up
1、2、3···；
Step 10：Five～step 9 of repeat step, until rolled piece is thinned to target thickness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510516299.0A CN105170650B (en) | 2015-08-19 | 2015-08-19 | Tension applying apparatus and method in a kind of metal polar thin belt operation of rolling |
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| CN201510516299.0A CN105170650B (en) | 2015-08-19 | 2015-08-19 | Tension applying apparatus and method in a kind of metal polar thin belt operation of rolling |
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| CN105170650B true CN105170650B (en) | 2017-04-05 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55112111A (en) * | 1979-02-23 | 1980-08-29 | Hitachi Ltd | Controller for continuous rolling mill |
| JP3449305B2 (en) * | 1999-08-19 | 2003-09-22 | Ｊｆｅスチール株式会社 | Tension control method and apparatus for strip material |
| CN202224448U (en) * | 2011-08-30 | 2012-05-23 | 湖南晟通科技集团有限公司 | Breakage detection device of foil rolling mill |
| CN102989766A (en) * | 2012-12-25 | 2013-03-27 | 东北大学 | Method for rolling ultra-thin metal strap |
| CN104550258B (en) * | 2015-01-16 | 2016-08-17 | 中冶东方工程技术有限公司 | A kind of quenched rail rolling Minimum Tension Control System and method |
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