CN205056668U - Steel cord water tank wire drawing machine rolling speed control unit - Google Patents
Steel cord water tank wire drawing machine rolling speed control unit Download PDFInfo
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- CN205056668U CN205056668U CN201520774505.3U CN201520774505U CN205056668U CN 205056668 U CN205056668 U CN 205056668U CN 201520774505 U CN201520774505 U CN 201520774505U CN 205056668 U CN205056668 U CN 205056668U
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Abstract
The utility model discloses a steel cord water tank wire drawing machine rolling speed control unit, including rolling I -shaped wheel, tension pendulum rod, fan -shaped response piece, receipt fan -shaped response piece is gathered tension pendulum rod oscillating quantity's analog quantity switch and receipt the analog quantity switch changes oscillating quantity into analog signal's rolling converter, and with the rolling I -shaped takes turns to winding wire rod complex winding displacement wheel and pulley, still including distributing proximity switch response piece, wire rod that the winding displacement took turns to pass through the programmable logic controler who triggers the proximity switch who produces pulse signal and receive pulse signal during the winding displacement wheel, programmable logic controler passing signal cable with the rolling converter links to each other. Configuring the rolling converter into real -time principal velocity and adding PID output overlay model, real -time rolling rotational speed n composes for the rolling converter as real -time principal velocity, and then PID output control volume very reduces, has reduced the emergence probability of the overshoot condition, and greatly reduced resolves a probability.
Description
Technical field
The utility model relates to steel cord production equipment, refers to a kind of steel cord water tank drawbench rolling speed control device particularly.
Background technology
In steel cord production equipment, steel cord water tank drawbench, when overlength take-up, meets v=n*2 π R (v is linear velocity, and n is rolling I-beam wheel rotating speed, and R is real-time rolling radius) relation.When drawn wire speed v is constant, along with the change of real-time rolling radius R is large, rolling I-beam wheel rotating speed n needs to reduce thereupon.General way will adopt rolling transducer drive variable-frequency motor through machine driving to the speed governing of rolling I-beam wheel, and the computational methods of speed generally adopt rolling frequency converter inner pid algorithm dynamic calculation rolling speed.After single pid algorithm controling parameters is fixing, its adjusting speed accuracy, speed adjustable range are fixed, and can meet general rolling requirement.But when the take-up of wire drawing machine overlength, often coil diameter, mass change amount are greatly, and speed adjustable range becomes large, and adjusting speed accuracy requires to improve.One group of single pid parameter, can not meet that winding tension in wrapup procedure is stable, the stable speed governing requirement of start and stop, often there will be because overshoot fracture of wire or tension fluctuation exceed the situation of technological requirement.During the normal take-up of steel cord water tank drawbench, take-up length is 20000-40000 rice, and during overlength take-up, rolling length is 450000-700000 rice, and rolling speed during overlength take-up controls to have become industry technology difficult point.
General optimization solution be an additional fixing principal velocity to reduce the regulated quantity of pid algorithm, or adopt many group pid parameter Discrete control.Adopt method successful in rolling shutdown process of additional fixing principal velocity, but speed adjustable range is wide in overlength take-up process, in the speed regulating section of segmentation, still there will be because of overshoot fracture of wire after additional single principal velocity, wire broken rate does not reach application requirement.Many groups pid parameter controls, although can temporarily meet rolling requirement, rolling I-beam wheel changes or after rolling length adjustment, need field experiment again and solidification in a control program, maintenance workload is large, and bulk application uniformity is not strong.Therefore, above two kinds of methods are not all desirable solutions.
Summary of the invention
The purpose of this utility model will overcome above-mentioned the deficiencies in the prior art exactly, provides a kind of steel cord water tank drawbench rolling speed control device reducing wire rod wire broken rate and improve wire rod linearity, to adapt to the needs of overlength take-up.
For achieving the above object, steel cord water tank drawbench rolling speed control device designed by the utility model, comprise rolling I-beam wheel, tension force fork, be arranged on the fan-shaped sensor block of described tension force fork one end, receive described fan-shaped sensor block gather the analogue quantity switch of described tension force fork oscillating quantity and receive the rolling frequency converter that oscillating quantity is changed into analog signals by described analogue quantity switch, and the pulley of the glass pulley to coordinate with the wire rod that described rolling I-beam wheel is wound around and the described tension force fork other end, also comprise the proximity switch sensing chip be distributed on described glass pulley, wire rod produces the proximity switch of pulse signal and the programmable logic controller (PLC) of return pulse signal by triggering during described glass pulley, described programmable logic controller (PLC) is connected with described rolling frequency converter by signal cable.
Further, calculate real-time rolling rotating speed n after described programmable logic controller (PLC) return pulse signal, and n is transferred to rolling frequency converter as real-time principal velocity, its computing formula is as follows:
Wherein:
R
modelfor real-time rolling radius;
R
i-beam wheelfor rolling I-beam wheel radius, L
i-beam wheelfor rolling I-beam wheel length,
R
wire rodfor wire radius, L
wire rodfor wire winding length,
V is linear velocity,
K
dutycycleset by on-the-spot array pitch and determine,
K
correction factordetermined by on-the-spot speed accuracy in computation.
Further, described proximity switch sensing chip is evenly distributed on described glass pulley.
Compared with prior art, the utility model has the following advantages: become by rolling configure of frequency AC Drive real-time principal velocity to add PID and export overlay model, real-time rolling rotating speed n is assigned to rolling frequency converter as real-time principal velocity, then PID Drazin inverse amount greatly reduces, generally only account for 1% ~ 2% of the output of whole speed, reduce the probability of happening of overshoot condition, greatly reduce fracture of wire probability; PID adjusts amplitude, cycle reduction, well ensure that the tension stability in wrapup procedure; In wrapup procedure, make it meet rolling requirement along with the change of coil diameter adjusts rolling speed automatically, significant in the quality index such as reduction steel cord water tank drawbench wire rod wire broken rate and raising wire rod linearity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model steel cord water tank drawbench rolling speed control device.
In figure, each part numbers is as follows: proximity switch 1, analogue quantity switch 2, rolling frequency converter 3, rolling I-beam wheel 4, glass pulley 5, tension force fork 6, programmable logic controller (PLC) 7, fan-shaped sensor block 8, pulley 9, wire rod 10.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Steel cord water tank drawbench rolling speed control device as shown in Figure 1, comprises rolling I-beam wheel 4, tension force fork 6, fan-shaped sensor block 8, pulley 9, glass pulley 5, analogue quantity switch 2, proximity switch sensing chip (not shown), proximity switch 1, rolling frequency converter 3 and programmable logic controller (PLC) (PLC) 7.The other end that fan-shaped sensor block 8 is arranged on one end of tension force fork 6, pulley 9 is arranged on tension force fork 6, wire rod 10 enters rolling I-beam wheel 4 by pulley 9, glass pulley 5, and programmable logic controller (PLC) 7 is pulled by holding wire and is connected with rolling frequency converter 3.
Analogue quantity switch 2 and fan-shaped sensor block 8 support the use, and fan-shaped sensor block 8 gathers tension force fork 6 oscillating quantity, and analogue quantity switch 2 receives oscillating quantity and changes into analog signals and sends rolling frequency converter 3 to; Proximity switch sensing chip is evenly distributed on glass pulley 5, and when wire rod 10 is by glass pulley 5, proximity switch 1 triggers and produces pulse signal, and pulse signal is sent to programmable logic controller (PLC) 7; Then the rolling model by setting up calculates real-time rolling rotating speed n, and real-time rolling rotating speed n is sent to and rolling frequency converter 3 by programmable logic controller (PLC) 7.
Abstract for rolling I-beam wheel be a cylinder, its volume V
i-beam wheelcomputing formula is as follows:
V
i-beam wheel=π R
i-beam wheel 2* L
i-beam wheel(R
i-beam wheelfor rolling I-beam wheel radius, L
i-beam wheelfor rolling I-beam wheel length);
Abstract for wire rod be an elongated cylinder, its volume V
wire rodcomputing formula is as follows:
V
wire rod=π R
wire rod 2* L
wire rod(R
wire rodfor wire radius, L
wire rodfor wire winding length);
Real-time rolling coil diameter R
modelcomputing formula is as follows, gets V
modelfor setting up real-time rolling coil diameter cylinder volume:
V
model=π R
model 2* L
i-beam wheel
Get
K
dutycycleset by on-the-spot array pitch and determine,
K
correction factordetermined by on-the-spot speed accuracy in computation;
Again according to v=n*2 π R (v is linear velocity, and n is real-time rolling rotating speed, and R is real-time rolling radius)
?
In addition, length of wires L
wire rod: the umber of pulse triggered when being rotated by proximity switch record glass pulley, umber of pulse changes into the number of turns of rotation divided by the pulse that glass pulley often encloses, and is multiplied by glass pulley girth and can changes into length of wires L
wire rod.
* all in above-mentioned is the meaning be multiplied by; Analogue quantity switch is the blue precious LR18BN08LIM in Shanghai, programmable logic controller (PLC) is Siemens s7-200SMART series CPUSR40, rolling frequency converter is ABBacs510-01-05A6-4 Series Frequency Converter, formulae discovery process utilizes CPU software programming to realize.
Using n as real-time principal velocity to rolling frequency converter, then by rolling converter parameter configuration make rolling frequency converter be that real-time principal velocity adds PID output mode, on-the-spot steel cord water tank drawbench overlength take-up operating mode can be met.
By setting up real-time rolling model, the real-time rolling coil diameter R of analog computation
model, utilize k at the scene
dutycycle, k
correction factortwo correction factors, can make real-time rolling rotating speed n meet rolling requirement comparatively accurately, and can automatically regulate in wrapup procedure.Become by rolling configure of frequency AC Drive real-time principal velocity to add PID and export overlay model, real-time rolling rotating speed n is assigned to rolling frequency converter as real-time principal velocity, then PID Drazin inverse amount greatly reduces, generally only account for 1% ~ 2% of the output of whole speed, reduce the probability of happening of overshoot condition, greatly reduce fracture of wire probability; PID adjusts amplitude, cycle reduction, well ensure that the tension stability in wrapup procedure.
After the change of site technique situation, only R need be revised
i-beam wheel, L
i-beam wheel, R
wire rodthree preset parameters, can complete rolling parameter modification, and comparatively original many group pid parameter patterns are compared, and greatly reduce the workload of experimental debugging, it is strong that system applies transportable property, decreases the waste of wire product in debug process.
Set up coil diameter variation model in wrapup procedure, in wrapup procedure, make it meet rolling requirement along with the change of coil diameter adjusts rolling speed automatically.Significant in the quality index such as reduction steel cord water tank drawbench wire rod wire broken rate and raising wire rod linearity.
Claims (3)
1. a steel cord water tank drawbench rolling speed control device, comprise rolling I-beam wheel (4), tension force fork (6), be arranged on the fan-shaped sensor block (8) of described tension force fork (6) one end, receive described fan-shaped sensor block (8) gather the analogue quantity switch (2) of described tension force fork (6) oscillating quantity and receive the rolling frequency converter (3) that oscillating quantity is changed into analog signals by described analogue quantity switch (2), and the pulley (9) of the glass pulley (5) to coordinate with the upper wire rod (10) be wound around of described rolling I-beam wheel (4) and described tension force fork (6) other end, it is characterized in that: also comprise the proximity switch sensing chip be distributed on described glass pulley (5), wire rod (10) produces the proximity switch (1) of pulse signal and the programmable logic controller (PLC) (7) of return pulse signal by triggering time described glass pulley (5), described programmable logic controller (PLC) (7) is connected with described rolling frequency converter (3) by signal cable.
2. steel cord water tank drawbench rolling speed control device according to claim 1, it is characterized in that: after described programmable logic controller (PLC) (7) return pulse signal, calculate real-time rolling rotating speed n, and n is transferred to rolling frequency converter (3) as real-time principal velocity, its computing formula is as follows:
Wherein:
R
modelfor real-time rolling radius;
R
i-beam wheelfor rolling I-beam wheel radius, L
i-beam wheelfor rolling I-beam wheel length,
R
wire rodfor wire radius, L
wire rodfor wire winding length,
V is linear velocity,
K
dutycycleset by on-the-spot array pitch and determine,
K
correction factordetermined by on-the-spot speed accuracy in computation.
3. steel cord water tank drawbench rolling speed control device according to claim 1 and 2, is characterized in that: described proximity switch sensing chip is evenly distributed on described glass pulley (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774505.3U CN205056668U (en) | 2015-10-08 | 2015-10-08 | Steel cord water tank wire drawing machine rolling speed control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774505.3U CN205056668U (en) | 2015-10-08 | 2015-10-08 | Steel cord water tank wire drawing machine rolling speed control unit |
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| Publication Number | Publication Date |
|---|---|
| CN205056668U true CN205056668U (en) | 2016-03-02 |
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ID=55383271
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520774505.3U Active CN205056668U (en) | 2015-10-08 | 2015-10-08 | Steel cord water tank wire drawing machine rolling speed control unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759178A (en) * | 2019-11-21 | 2020-02-07 | 江苏兴达钢帘线股份有限公司 | Constant tension control method and device for steel cord take-up machine |
| CN116890038A (en) * | 2023-08-25 | 2023-10-17 | 孚瑞肯电气(深圳)有限公司 | Method and device for rapidly stopping winding frequency converter of wire drawing machine |
-
2015
- 2015-10-08 CN CN201520774505.3U patent/CN205056668U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759178A (en) * | 2019-11-21 | 2020-02-07 | 江苏兴达钢帘线股份有限公司 | Constant tension control method and device for steel cord take-up machine |
| CN116890038A (en) * | 2023-08-25 | 2023-10-17 | 孚瑞肯电气(深圳)有限公司 | Method and device for rapidly stopping winding frequency converter of wire drawing machine |
| CN116890038B (en) * | 2023-08-25 | 2024-05-24 | 孚瑞肯电气(深圳)有限公司 | Method and device for rapidly stopping winding frequency converter of wire drawing machine |
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