CN103112740A - Winding machine and method of controlling winding of flexible material - Google Patents

Abstract

The invention discloses a winding machine and a method of controlling winding of flexible material and belongs to the technical field of material processing. The winding machine comprises a winding up roller, a delivery roller, a motor, a controller, a first distance measuring unit and a second distance measuring unit, wherein the winding up roller is driven by the motor, the first distance measuring unit is arranged on the upper portion or the lower portion between the delivery roller and the winding up roller, the second distance measuring unit is arranged outside the winding up roller and is directed on the outer cylindrical surface of the winding up roller, and the controller is respectively connected with the first distance measuring unit and the second distance measuring unit and controls the set rotating speed of the motor. The tension of the flexible material is close to zero and almost no tension fluctuates, and therefore the winding machine can finish the micro-tension winding or zero-tension winding of the materials with high quality.

Description

A kind of method of winder and the rolling of control flexible material

Technical field

The present invention relates to the materials processing technology field, particularly a kind of winder and control the method for flexible material rolling.

Background technology

Winder is a kind of high efficiency equipment in flexible material rolling processing, present existing winder mainly comprise tonometry roller, winding up roller and controller, the tonometry roller is the vitals of controlling flexible material tension force, Tensity size and variation that the tonometry roller is suffered according to it, send signal to controller, control motor speed by controller, to regulate the speed of winding up roller rolling flexible material, making flexible material rolling backward pull is definite value.

In actual conditions, when requiring " Minimal Tension " or " zero tension force " rolling material, the winding up roller friction force is much larger than flexible material tension force, and the tension force of required measurement is much smaller than the gravity of tonometry roller, thereby tension pick-up type selecting difficulty, and measuring has very large error.So with tonometry roller adjustment of tonicity size very inaccuracy, the flexible material tension fluctuation is large, existing winder can't be completed " Minimal Tension " of material or " zero tension force " rolling.

Summary of the invention

The technical matters that (one) will solve

The technical problem to be solved in the present invention is: tension force inaccuracy when how to solve existing winder control " Minimal Tension " or " zero tension force " rolling, the problem that the flexible material tension fluctuation is large.

(2) technical scheme

In order to solve the problems of the technologies described above, the invention provides a kind of winder, described winder comprises: winding up roller, conveying roller, motor, controller, the first range cells and the second range cells, described winding up roller is by described motor-driven, described the first range cells described conveying roller and described winding up roller between above or below, described the second range cells is positioned at outside described winding up roller, and aim at the external cylindrical surface of described winding up roller, described controller respectively with described the first range cells be connected the second range cells and be connected, and control the setting rotating speed of described motor.

Wherein, described the first range cells below between described conveying roller and described winding up roller, described the second range cells be positioned at described winding up roller under.

Wherein, described controller is a kind of in micro controller system, programmable logic controller (PLC) and central process unit.

Wherein, described the first range cells is ultrasonic distance-measuring sensor or laser sensor.

Wherein, described the second range cells is ultrasonic distance-measuring sensor or laser sensor.

The invention also discloses a kind of method that adopts described winder to control the flexible material rolling, described method comprises:

S1, conveying roller are carried flexible material, and the tail end of described flexible material is wound on winding up roller;

S2, the first range cells are obtained the first distance between itself and described flexible material, and are forwarded to controller, and the second range cells is obtained itself and the described winding up roller second distance between bottom, and is forwarded to described controller;

S3, described controller calculate the also setting rotating speed of regulating electric machine according to described the first distance that receives and described second distance, so that described flexible material forms the flexible material section of dangling between described conveying roller and described winding up roller, and make the described section of dangling flexible material and described the first range cells keep setpoint distance.

Wherein, in step S3, by regulating the setpoint distance of described the first range cells, make the winding tension of described flexible material reach required tension force.

Wherein, described controller adoption rate integral method is calculated the setting rotating speed of described motor.

Wherein, the computing formula of the setting rotating speed of the described motor of described proportional integral (PI) method calculating is:

n _Motor=n _set* j

Wherein, n _set=n _D+ n _{Pi (t)}; $n_D=\frac{V_0}{2\mathrm{\π}\×(L_0-L_x+R)};$ $n_{\mathrm{pi}\left(t\right)}=\mathrm{Kp}[e\left(t\right)+\frac{1}{\mathrm{Ti}}\∫e\left(t\right)\mathrm{dt}];$ E=H-H _xn _MotorSetting rotating speed for described motor; n _setBe the setting rotating speed of described winding up roller, j is the revolution ratio of described motor and described winding up roller; Kp is rate mu-factor; Ti is the integration time constant; R is the radius of described winding up roller when being blank coil; L ₀Observed reading for described the second range cells when described winding up roller is blank coil; L _xBe current second distance; V ₀Carry the speed of described flexible material for described conveying roller; H is the setpoint distance of described the first range cells and the described flexible material section of dangling; H _xBe the first current distance.

Wherein, after execution in step S3, directly return to step S2, until described winding up roller is completed rolling.

(3) beneficial effect

Winder in the present invention has been cancelled tonometry roller in prior art, adopt conveying roller to carry flexible material, flexible material tension force is close to zero, and change to control the winding up roller rolling speed by monitoring spool radius and the flexible material fragment position of dangling, making does not almost have tension fluctuation when the rolling flexible material, can complete in high quality " Minimal Tension " or " zero tension force " rolling to flexible material.

Description of drawings

Fig. 1 is the structural representation of the winder of an embodiment of the present invention.

Fig. 2 is the method flow diagram that adopts the winder control flexible material rolling in Fig. 1.

Wherein: 1, conveying roller; 2, winding up roller; 3, motor; 4, controller; 5, the first range cells; 6, the second range cells; 7, the flexible material section of dangling; 8, flexible material.

The specific embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.

Fig. 1 is the structural representation of the winder of an embodiment of the present invention; With reference to Fig. 1, the winder of the present embodiment comprises: conveying roller 1, winding up roller 2, motor 3, controller 4, the first range cells 5 and the second range cells 6, conveying roller 1 is for delivery of flexible material, the first range cells 5 is below between conveying roller 1 and winding up roller 2, and in the vertical direction the first range cells 5 can be 20 ~ 50cm with the distance of conveying roller 1 and winding up roller 2, the second range cells 6 be positioned at winding up roller 2 under, and the distance can be 20 ~ 50cm.Winding up roller 2 is driven by motor 3, controller 4 respectively with the first range cells 5 be connected range cells 6 and be connected, and the setting rotating speed of control motor 3.

Preferably, controller 4 is a kind of in micro controller system, programmable logic controller (PLC) and central process unit.

Preferably, the first range cells 5 and the second range cells 6 are the sensor that ultrasonic distance-measuring sensor or laser range sensor etc. can be used for finding range.。

Fig. 2 is the method flow diagram that adopts the winder control flexible material rolling in Fig. 1; With reference to Fig. 2, described method comprises:

S1, conveying roller 1 are carried flexible material 8, and the tail end of flexible material 8 is wound on winding up roller 2;

S2, the first range cells 5 are obtained the first distance between itself and flexible material 8, and are forwarded to controller 4, the second range cells 6 and obtain itself and winding up roller 2 second distance between bottom, and are forwarded to controller 4;

S3, controller 4 calculate the also setting rotating speed of regulating electric machine 3 according to the first distance that receives and second distance, so that flexible material 8 forms the flexible material section of dangling 7 between conveying roller 1 and winding up roller 2, and making the flexible material section of dangling 7 and the first range cells 5 keep fixed range, this distance can be 20 ~ 50cm.The computing formula of the setting rotating speed of motor 3 is:

n _Motor=n _set* j

Wherein, n _set=n _D+ n _{Pi (t)}; $n_D=\frac{V_0}{2\mathrm{\π}\×(L_0-L_x+R)};$ $n_{\mathrm{pi}\left(t\right)}=\mathrm{Kp}[e\left(t\right)+\frac{1}{\mathrm{Ti}}\∫e\left(t\right)\mathrm{dt}];$ E=H-H _xn _MotorSetting rotating speed for motor 3; n _setBe the setting rotating speed of winding up roller 2, j is the revolution ratio of motor 3 and winding up roller 2; Kp is rate mu-factor; Ti is the integration time constant; R is winding up roller 2 radiuses when being blank coil; L ₀Observed reading for the second range cells 6 when winding up roller 2 is blank coil; L _xBe current second distance; V ₀Speed for conveying roller 1 conveying flexible material 8; H is the setpoint distance of the first range cells 5 and the flexible material section of dangling 7; H _xBe the first current distance.

By this control method, more and more when the flexible material 8 of winding up roller 2 rollings, when radius became large, the rotating speed of motor 3 can descend, to keep winding up roller 2 winding wire speed constant.When the section of dangling 7 and the first range cells 5 distance H when becoming large, namely meaned the winding wire excessive velocities of winding up roller 2, controller 4 can slow down by regulating electric machine 3 after receiving signal, otherwise, accelerate, until distance H reverts to setting value.

Preferably, in step S3, can be by regulating the setpoint distance H of the first range cells 5, make the winding tension of flexible material 8 reach required " Minimal Tension ", if want to increase winding tension, only need setpoint distance H is diminished, make the flexible material more than 8 of the section of dangling 7, the increase gravity flexible material 8 that stretches.Otherwise, can reduce winding tension.

Preferably, after execution in step S3, return to step S2, until winding up roller 2 is completed rolling.

Above embodiment only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.

Claims (10)

1. winder, it is characterized in that, described winder comprises: winding up roller, conveying roller, motor, controller, the first range cells and the second range cells, described winding up roller is by described motor-driven, described the first range cells described conveying roller and described winding up roller between above or below, described the second range cells is positioned at outside described winding up roller, and aim at the external cylindrical surface of described winding up roller, described controller respectively with described the first range cells be connected the second range cells and be connected, and control the rotating speed of described motor.

2. winder as claimed in claim 1, is characterized in that, described the first range cells below between described conveying roller and described winding up roller, described the second range cells be positioned at described winding up roller under.

3. winder as claimed in claim 1 or 2, is characterized in that, described controller is a kind of in micro controller system, programmable logic controller (PLC) and central process unit.

4. winder as claimed in claim 1 or 2, is characterized in that, described the first range cells is ultrasonic distance-measuring sensor or laser range sensor.

5. winder as claimed in claim 1 or 2, is characterized in that, described the second range cells is ultrasonic distance-measuring sensor or laser range sensor.

6. the method for employing winder control as described in any one in claim 2 ~ 5 flexible material rolling, is characterized in that, described method comprises:

S1, conveying roller are carried flexible material, and the tail end of described flexible material is wound on winding up roller;

S2, the first range cells are obtained the first distance between itself and described flexible material, and are forwarded to controller, and the second range cells is obtained itself and the described winding up roller second distance between bottom, and is forwarded to described controller;

S3, described controller calculate the also setting rotating speed of regulating electric machine according to described the first distance that receives and described second distance, so that described flexible material forms the flexible material section of dangling between described conveying roller and described winding up roller, and make the described flexible material section of dangling and described the first range cells keep setpoint distance.

7. control as claimed in claim 6 the method for flexible material rolling, it is characterized in that, in step S3, by regulating the setpoint distance between described flexible material and described the first range cells, make described winding tension reach required tension force.

8. control as claimed in claim 6 the method for flexible material rolling, it is characterized in that, described controller adoption rate integral method is calculated the setting rotating speed of described motor.

9. control as claimed in claim 8 the method for flexible material rolling, it is characterized in that, the computing formula that described proportional integral (PI) method is calculated the setting rotating speed of described motor is:

n _Motor=n _set* j

Wherein, $n_{\mathrm{set}}=n_D+n_{\mathrm{pi}\left(t\right)}{;n}_D=\frac{V_0}{2\mathrm{\π}\×(L_0-L_x+R)};$ $n_{\mathrm{pi}\left(t\right)}=\mathrm{Kp}[e\left(t\right)+\frac{1}{\mathrm{Ti}}\∫e\left(t\right)\mathrm{dt}];$ E=H-H _xn _MotorSetting rotating speed for described motor; n _setBe the setting rotating speed of described winding up roller, j is the revolution ratio of described motor and described winding up roller; Kp is rate mu-factor; Ti is the integration time constant; R is the radius of described winding up roller when being blank coil; L ₀Observed reading for described the second range cells when described winding up roller is blank coil; L _xBe current second distance; V ₀Carry the speed of described flexible material for described conveying roller; H is the setpoint distance of described the first range cells and the described flexible material section of dangling; H _xBe the first current distance.

10. as the method for control flexible material rolling as described in any one in claim 6 ~ 9, it is characterized in that, after execution in step S3, directly return to step S2, until described winding up roller is completed rolling.

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