CN202390001U - Tension control device - Google Patents

Abstract

The utility model relates to a tension control device, which comprises a control device, an unreeling roll, a reeling roll, a trough, a tension roll and a rolling diameter detection device, wherein the unreeling roll and the reeling roll are respectively driven by a motor; two ends of the tension roll are positioned in the trough and can vertically float; the control device comprises an information input unit, a data computation unit and an information output unit, wherein the data computation unit is used for carrying out interpolation operation on position for the strip coil winding L distance motor of the reeling roll and the unreeling roll according to the comprehensively-input roll diameter information of the reeling roll and the unreeling roll, and guaranteeing that the winding linear speed is consistent; the control device is respectively electrically connected with an unreeling roll motor and a reeling roll motor; the rolling diameter detection device is electrically connected with the control device; and a tape coiled on the unreeling roll is coiled on the reeling roll. The tension control device has the beneficial effects of simple control mode, high control precision and good system operation stability and is easy to realize.

Description

A kind of tenslator

Technical field

The utility model relates to the control technology field, particularly relates to a kind of control setup of tension force.

Background technology

Tension Control is widely used in the production reality of all trades and professions, generally adopts in the prior art:

1, DC control (DC speed regulation, DC injection braking), characteristics are to come adjustment of tonicity output through the braking amount that adjusting unreels motor.Shortcoming is that direct current mechanical drive net synchronization capability is undesirable, can't realize permanent linear speed, permanent tension force, and is especially outstanding to the large package situation.

2, fluid control (Hydraulic Station, flow proportion valve), characteristics are to come adjustment of tonicity output through the flow proportion valve that adjusting unreels motor.Existing problems one are homemade hydraulic part sealing property, poor reliability.The 2nd, though the reliable in quality of import, price is high, spare part is difficult.

3, variable frequency control, service precision is higher, but it is a speed control; The variables of considering is more, especially in the acceleration and deceleration operational process owing to increased physical quantitys such as angular acceleration, inertia, and be nonlinearities change; Increased the control difficulty of system; Need monitor in real time system's acceleration and moderating process, the revised theory parameter just can be implemented in the permanent tension force in the error limit through test of many times.

4, at present each Tension Control to be mostly that let off roll and wind-up roll are all cylindrical, can not tackle multiple situation in the practical application, certain limitation is arranged.

Summary of the invention

For overcoming the above problems, the utility model provides a kind of tenslator,

Said tenslator comprises:

Control setup, let off roll, wind-up roll, draw-in groove, jockey pulley, volume footpath detecting device;

Said volume footpath detecting device is used for the detection to let off roll and/or wind-up roll volume footpath;

Said let off roll and wind-up roll are by the difference motor-driven, and said jockey pulley two ends are positioned at draw-in groove and can fluctuate;

Said control setup comprises:

Information input unit is used to import required computing information;

The data computation unit, the let off roll and the wind-up roll volume footpath information that are used for comprehensive input are carried out interpolation operation to let off roll and wind-up roll roll coil of strip winding L apart from position and winding wrap wire speed that motor rotated, unreel consistent with the rolling linear velocity in the winding process;

Information output unit, the location information that is used for the data calculating unit is carried out interpolation operation gained motor rotation is exported to let off roll motor and wind-up roll motor respectively;

Said control setup is electrically connected with let off roll motor and wind-up roll motor respectively, and said volume footpath detecting device is electrically connected with control setup, and the winding of twining on the let off roll is wound on the wind-up roll through jockey pulley.

Further said motor is servomotor or stepping motor.

Further said data computation unit can be motion control card or motion controller or interpolator or bus controller.

Further said tenslator also comprises position detecting device, is used for the position probing that fluctuates to jockey pulley; And be electrically connected with control setup, be used for giving control setup with the change in location message feedback; Wherein said position detecting device connects warning device, is used for the output of reporting to the police of unusual tension information.

Further said L value can be passed through the information input unit setting.

Further said let off roll is cylindrical, and wind-up roll is an elliptical cylinder-shape or cylindrical.

Further said let off roll and wind-up roll motor also have coder; And be electrically connected with control setup; Be used for detecting immediately the motor position of rotation; And immediate feedback should reach the position with said data computation unit through the rotation of interpolation operation transmission location information rear motor and compare analysis, thereby further adjust the motor rotary position information to control setup.

Further said tenslator can be integral structure or split-type structural.

The control method of said tenslator is:

The winding of twining on the let off roll is wrapped on the wind-up roll through jockey pulley; Jockey pulley is positioned on the ribbon; Information input unit receives the volume footpath data of let off roll and/or wind-up roll; Send to the data computation unit, the data computation unit draws the position of the required rotation of belt length L motor that is fastened and sends to let off roll and wind-up roll motor respectively through information output unit through interpolation operation, controls the operation of two motors.

Wherein the volume of let off roll and wind-up roll footpath can draw through measurement and calculation mode, thereby realizes the tension force accuracy control.

The utility model also provides a kind of tension control method.

Said tension control method comprises the steps:

Step 1, winding unreel through let off roll, through jockey pulley, after be wound on the wind-up roll;

Step 2, obtain let off roll and wind-up roll original volume footpath;

Step 3, obtain time dependent instant volume footpath in let off roll and/or the wind-up roll winding winding process;

Input information in step 4, comprehensive step 2 and the step 3 carries out interpolation operation, calculate respectively the every winding of winding L apart from the time let off roll and wind-up roll motor position of rotation and the linear velocity that unreels in the winding process with rolling is consistent; Export to let off roll motor and wind-up roll motor respectively through information output unit then;

Step 5, let off roll motor and wind-up roll motor turn round according to the information of being exported in the step 4.

Let off roll motor described in the further step 5 and wind-up roll motor are stepping motor and servomotor.

Let off roll described in the further step 2 is cylindrical, and wind-up roll is an elliptical cylinder-shape.

Let off roll described in the further step 2 and wind-up roll all are cylindrical.

Time dependent instant volume footpath can measure respectively through position detecting device in let off roll described in the further step 3 and the wind-up roll winding winding process.

Interpolation operation described in the further step 4 is that interpolator carries out motor rotation required pulse calculating or bus controller carries out motor swing circle position calculation.

Original volume footpath and winding THICKNESS CALCULATION before time dependent instant volume footpath can begin to twine through known let off roll and wind-up roll in let off roll described in the further step 3 and the wind-up roll winding winding process are learnt.

Interpolation operation described in the further step 4 also comprises comprehensive analyses and the deviation calculation to the jockey pulley change in location information of position detecting device feedback; Wherein position detecting device is electrically connected with warning device, the alarm message when exportable tension force is unusual.

L value in the further said step 4 can be provided with.

Interpolation operation described in the further step 4 comprises that also through coder the position probing data of let off roll and wind-up roll motor and former interpolation operation being sent the required position of location information rear motor compares.

The beneficial effect of the utility model is:

1, mode is simple, realizes that easily, control accuracy is high;

2, system's good operation stability.

Description of drawings

Fig. 1 is the structural representation of tenslator:

Fig. 2 is the draw-in groove structural representation.

Among the figure: 1, do not twine winding let off roll 2, be tied with the let off roll of winding

3, be not tied with winding wind-up roll 4, be tied with the wind-up roll of winding

5, jockey pulley 6, draw-in groove 7, position transduser 8, measurement of film reel diameter device

The specific embodiment

The control principle of tenslator and tension control method is following:

ω ₁The expression let off roll unreels the radian that L length motor turns over constantly;

ω ₂The radian that expression wind-up roll rolling constantly L length motor turns over:

P ₁The expression let off roll motor required pulse sum that sends that rotates a circle, The expression let off roll unreels L apart from the required given pulse count of motor:

P ₂The expression wind-up roll motor required pulse sum that sends that rotates a circle, The required given pulse count of expression wind-up roll rolling L distance;

L representes the distance that unreels set;

$\frac{{\mathrm{\ω}}_1}{2\mathrm{\π}}=\frac{P_1^{/}}{P_1}$

$\frac{{\mathrm{\ω}}_2}{2\mathrm{\π}}=\frac{P_2^{/}}{P_2}$

Can know by following formula, in winding process, twine L distance time dependent radian separately, can draw let off roll and wind-up roll and twine the required pulse number that L rotates apart from motor as long as draw let off roll and wind-up roll.

And for circle and oval known L arc length, below pairing angular relationship is:

Have for circle: L=ω R, R are radius of circle, and ω is a radian

Have for ellipse:

If oval last 2 P (x ₁, y ₁) and Q (x ₂, y ₂) cooresponding eccentric angle is respectively α, β, major axis is a, minor axis is b, and P point substitution elliptic equation is had: $\left\{\begin{array}{c}{x}_1=a\mathrm{Cos}\mathrm{\α}\\ y_1=b\mathrm{Sin}\mathrm{\α}\end{array}\right.$

So the eccentric angle that P is ordered is: $\mathrm{\α}=\mathrm{Acc}\mathrm{Cos}\frac{x_1}{a}$

In like manner can obtain the eccentric angle that Q is ordered: $\mathrm{\β}=\mathrm{Arccos}\frac{x_2}{a}$

Character according to ellipse: a ²-b ²=c ²,

And the definition of oval eccentricity: $e=\frac{c}{a}(0<e<1),$ E is an eccentricity

Can get:

$L_{\mathrm{PQ}}=a{\&Integral;}_{\mathrm{\&beta;}}^{\mathrm{\&alpha;}}\sqrt{1-e^2{\sin }^2\mathrm{\&theta;}}\mathrm{d\&theta;}=a{\&Integral;}_{\arcsin \frac{X_2}{a}}^{\arcsin \frac{X_1}{a}}\sqrt{1-e^2{\sin }^2\mathrm{\&theta;}}\mathrm{d\&theta;}$

$=a[E(e,\arcsin \frac{X_1}{a})-E(e,\arcsin \frac{X_2}{a})]$

Can know that known definite arc length can calculate circle and oval corresponding radian.

For overcoming the above problems, the utility model provides a kind of tenslator,

Said tenslator comprises:

Control setup, let off roll, wind-up roll, draw-in groove, jockey pulley, volume footpath detecting device;

Said volume footpath detecting device is used for the detection to let off roll and/or wind-up roll volume footpath;

Said let off roll and wind-up roll are by the difference motor-driven, and said jockey pulley two ends are positioned at draw-in groove and can fluctuate;

Said control setup comprises:

Information input unit is used to import required computing information;

The data computation unit, the let off roll and the wind-up roll volume footpath information that are used for comprehensive input are carried out interpolation operation to let off roll and wind-up roll roll coil of strip winding L apart from position and winding wrap wire speed that motor rotated, unreel consistent with the rolling linear velocity in the winding process;

Information output unit, the location information that is used for the data calculating unit is carried out interpolation operation gained motor rotation is exported to let off roll motor and wind-up roll motor respectively;

Said control setup is electrically connected with let off roll motor and wind-up roll motor respectively, and said volume footpath detecting device is electrically connected with control setup, and the winding of twining on the let off roll is wound on the wind-up roll through jockey pulley.

Further said motor is servomotor or stepping motor.

Further said data computation unit can be motion control card or motion controller or interpolator or bus controller.

Further said tenslator also comprises position detecting device, is used for the position probing that fluctuates to jockey pulley; And be electrically connected with control setup, be used for giving control setup with the change in location message feedback; Wherein said position detecting device connects warning device, is used for the output of reporting to the police of unusual tension information.

Further said L value can be passed through the information input unit setting.

Further said let off roll is cylindrical, and wind-up roll is an elliptical cylinder-shape or cylindrical.

Further said let off roll and wind-up roll motor also have coder; And be electrically connected with control setup; Be used for detecting immediately the motor position of rotation; And immediate feedback should reach the position with said data computation unit through the rotation of interpolation operation transmission location information rear motor and compare analysis, thereby further adjust the motor rotary position information to control setup.

Further said tenslator can be integral structure or split-type structural.

The control method of said tenslator is:

The winding of twining on the let off roll is wrapped on the wind-up roll through jockey pulley; Jockey pulley is positioned on the ribbon; Information input unit receives the volume footpath data of let off roll and/or wind-up roll; Send to the data computation unit, the data computation unit draws the position of the required rotation of belt length L motor that is fastened and sends to let off roll and wind-up roll motor respectively through information output unit through interpolation operation, controls the operation of two motors.

Wherein the volume of let off roll and wind-up roll footpath can draw through measurement and calculation mode, thereby realizes the tension force accuracy control.

The utility model also provides a kind of tension control method.

Said tension control method comprises the steps:

Step 1, winding unreel through let off roll, through jockey pulley, after be wound on the wind-up roll;

Step 2, obtain let off roll and wind-up roll original volume footpath;

Step 3, obtain time dependent instant volume footpath in let off roll and/or the wind-up roll winding winding process;

Input information in step 4, comprehensive step 2 and the step 3 carries out interpolation operation, calculate respectively the every winding of winding L apart from the time let off roll and wind-up roll motor position of rotation and the linear velocity that unreels in the winding process with rolling is consistent; Export to let off roll motor and wind-up roll motor respectively through information output unit then;

Step 5, let off roll motor and wind-up roll motor turn round according to the information of being exported in the step 4.

Let off roll motor described in the further step 5 and wind-up roll motor are stepping motor and servomotor.

Let off roll described in the further step 2 is cylindrical, and wind-up roll is an elliptical cylinder-shape.

Let off roll described in the further step 2 and wind-up roll all are cylindrical.

Time dependent instant volume footpath can measure respectively through position detecting device in let off roll described in the further step 3 and the wind-up roll winding winding process.

Interpolation operation described in the further step 4 is that interpolator carries out motor rotation required pulse calculating or bus controller carries out motor swing circle position calculation.

Original volume footpath and winding THICKNESS CALCULATION before time dependent instant volume footpath can begin to twine through known let off roll and wind-up roll in let off roll described in the further step 3 and the wind-up roll winding winding process are learnt.

Interpolation operation described in the further step 4 also comprises comprehensive analyses and the deviation calculation to the jockey pulley change in location information of position detecting device feedback; Wherein position detecting device is electrically connected with warning device, the alarm message when exportable tension force is unusual.

L value in the further said step 4 can be provided with.

Interpolation operation described in the further step 4 comprises that also through coder the position probing data of let off roll and wind-up roll motor and former interpolation operation being sent the required position of location information rear motor compares.

Embodiment one

At let off roll and wind-up roll all is under the situation of cylinder; The measurement of film reel diameter device is installed in the outside at let off roll and wind-up roll; Can measure the instant volume footpath changing value of let off roll and wind-up roll immediately; And send the data computation unit to through information input unit; The data computation unit through interpolation operation draw let off roll and wind-up roll whenever be fastened L apart from the time required pulse count

and then send to let off roll motor and wind-up roll motor through information output unit, and then realize the accuracy control of tension force through the position relation.

Embodiment two.

At let off roll is cylindrical; Wind-up roll is under the cylindroid situation; Wind-up roll starts by fixing position; The measurement of film reel diameter device is installed in the outside at let off roll; At the transverse of wind-up roll and the outside of minor axis the measurement of film reel diameter device is installed; Can measure the instant volume footpath changing value of let off roll and wind-up roll immediately; And send the data computation unit to through information input unit, the data computation unit through interpolation operation draw let off roll and wind-up roll whenever be fastened L apart from the time required pulse count and then send to let off roll motor and wind-up roll motor through information output unit, and then realize the accuracy control of tension force through the position relation.

Embodiment three,

The initial volume footpath and the winding thickness of known let off roll and wind-up roll; Through calculating the volume footpath changing value that to learn let off roll and wind-up roll; And send the data computation unit to through information input unit; The data computation unit through interpolation operation draw let off roll and wind-up roll whenever be fastened L apart from the time required pulse count

and then send to let off roll motor and wind-up roll motor through information output unit, and then realize the accuracy control of tension force through the position relation.

Embodiment four

Installation site sensor on jockey pulley; Instant variation of calculating tension force; And feed back to information input unit and be transferred to the data computation unit; And then respectively the interpolation operation data among embodiment one or embodiment two or the embodiment three are compared and deviation calculation, and then pulse count is sent to let off roll motor and wind-up roll motor through information output unit, and then realize the accuracy control of tension force through the position relation.

Embodiment five

On let off roll and wind-up roll motor, coder is installed, is used for detecting the motor rotation position immediately, and feeds back to control setup, send the required position of pulse by said data computation unit and said interpolation operation and compare analysis, thereby further adjust pulse count.

Embodiment six

Interpolation operation in embodiment one, embodiment two, embodiment three, embodiment four, embodiment five also can be for being calculated the motor position of rotation of let off roll and the every winding of wind-up roll motor winding L distance by the bus controller process; And this location information directly sent to let off roll motor and wind-up roll motor, thereby the running of control motor.

Like Fig. 1, Fig. 2, tenslator of the present invention and tension control method can be used for but be not limited to the Tension Control in the lithium cell manufacturing.

Although reference implementation example and accompanying drawing; A kind of tenslator and tension control method to the utility model are illustrated; But above-mentioned disclosed content only is in order better to understand the utility model; Rather than limit the scope of claim by any way, so all according to the described structure of the utility model patent claim, characteristic and principle do etc. change or modify, include protection domain in the utility model.

Claims (10)

1. a tenslator is characterized in that, said tenslator comprises:

Said tenslator comprises:

Control setup, let off roll, wind-up roll, draw-in groove, jockey pulley, volume footpath detecting device;

Said volume footpath detecting device is used for the detection to let off roll and wind-up roll volume footpath;

Said let off roll and wind-up roll are by the difference motor-driven, and said jockey pulley two ends are positioned at draw-in groove and can fluctuate;

Said control setup comprises:

Information input unit is used to import required computing information;

The data computation unit; The let off roll that is used for comprehensive input and wind-up roll volume directly information carry out interpolation operation to let off roll and the wind-up roll winding L that whenever is fastened apart from position and winding wrap wire speed that motor rotated, unreel consistent with the rolling linear velocity in the winding process;

Information output unit is used for that the data calculating unit is carried out interpolation operation gained motor rotation information and exports to let off roll motor and wind-up roll motor respectively;

Said control setup is electrically connected with let off roll motor and wind-up roll motor respectively, and said volume footpath detecting device is electrically connected with control setup, and the winding of twining on the let off roll is wound on the wind-up roll through jockey pulley.

2. tenslator as claimed in claim 1 is characterized in that: said motor is servomotor or stepping motor.

3. tenslator as claimed in claim 1 is characterized in that: said data computation unit is motion control card or motion controller or interpolator or bus controller.

4. like claim 1,2 or 3 described tenslators, it is characterized in that: said tenslator also comprises position detecting device, is used for the position probing that fluctuates to jockey pulley; And be electrically connected with control setup, be used for giving control setup with the change in location message feedback; Wherein said position detecting device connects warning device, is used for the output of reporting to the police of unusual tension information.

5. like claim 1,2 or 3 described tenslators, it is characterized in that: said fixed L value can be passed through the information input unit setting.

6. like claim 1,2 or 3 described tenslators, it is characterized in that: said let off roll is cylindrical, and wind-up roll is an elliptical cylinder-shape.

7. like claim 1,2 or 3 described tenslators, it is characterized in that: said let off roll and let off roll are cylindrical.

8. tenslator as claimed in claim 6 is characterized in that: said volume footpath detecting device is used for the measurement to transverse and minor axis when measuring wind-up roll volume footpath.

9. like claim 1,2 or 3 described tenslators; It is characterized in that: said let off roll and wind-up roll motor also have coder; And be electrically connected with control setup, be used for detecting the motor position of rotation immediately, and control setup is given in immediate feedback; Should reach the position with said data computation unit through the rotation of interpolation operation transmission location information rear motor and compare analysis, thereby further adjust the motor rotary position information.

10. like claim 1,2 or 3 described tenslators, it is characterized in that said tenslator is used for the Tension Control that lithium cell is made.

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