CN209665536U - Lath cutter speed and tension control system - Google Patents
Lath cutter speed and tension control system Download PDFInfo
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- CN209665536U CN209665536U CN201920333894.4U CN201920333894U CN209665536U CN 209665536 U CN209665536 U CN 209665536U CN 201920333894 U CN201920333894 U CN 201920333894U CN 209665536 U CN209665536 U CN 209665536U
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Abstract
Lath cutter speed and tension control system, including encoder, many motors control motor, servo controller, programmable controller, DP coupler, man-machine interface and bus cable, programmable controller is connected by the way of Profibus-DP with pulpboard machine control system by DP coupler；Encoder is mounted on above main shaft speed reducer output shaft；Encoder is connected by cable with servo controller；Servo controller is mounted on for driving the motor of main shaft in power distribution cabinet, and servo controller and man-machine interface are communicated by way of Profinet with programmable controller；Man-machine interface is installed on the adjustment and parameter setting that main given speed is used for above control cabinet.The utility model realizes lath cutter speed and tension force, reduces hardware cost, keep system more stable by using programmable controller and servo-control system.
Description
Technical field
The utility model belongs to pulping equipment automation field, and in particular to the lath cutter speed in pulpboard production process
Degree and tension control system.
Background technique
Currently, the speed and tension control of lath cutter generally uses tension sensor.Slurry is measured by tension sensor
The Tensity size of plate allows lath cutter and pulp machine to reach a velocity balance state to adjust lath cutter speed.This method energy
Enough satisfaction control requires, but tension sensor higher cost, and tension is not sufficiently stable, and precision does not reach requirement, and be easy to cause
The tension of pulpboard is suddenly big or suddenly small, and pulpboard is easily broken off.
Utility model content
The utility model is intended to provide a kind of lath cutter speed and tension control system, can make cutting in pulpboard production process
Trigger speed and Tensity size are stablized to stablize system, can be suitable for lath cutter or similar need speed tension force
Equipment.
The technical solution of the utility model realization above-mentioned purpose:
Lath cutter speed and tension control system, including encoder, many motors control motor, servo controller, programmable control
Device, DP coupler, man-machine interface and bus cable processed, programmable controller is by DP coupler, using the side of Profibus-DP
Formula is connected with pulpboard machine control system is converted into servo controller speed through data calculating with the main vehicle speed value for giving pulp machine
Given value is shown in man-machine interface；Encoder is mounted on above main shaft speed reducer output shaft；Encoder by cable with
Servo controller is connected, the actual speed for real-time measurement main shaft；Servo controller is mounted in power distribution cabinet for driving
The motor of dynamic main shaft, servo controller and man-machine interface are led to by way of Profinet with programmable controller
News, servo controller realize the speed and tension adjustment of main shaft by speed preset value and real-time current value；Man-machine interface
It is installed on the adjustment and parameter setting that main given speed is used for above control cabinet.
The control method of lath cutter speed and tension control system, comprising the following steps:
2. the control method of lath cutter speed and tension control system, it is characterised in that the following steps are included:
(1) speed is transmitted to programmable controller by Profibus-DP by pulp machine slurry.
(2) programmable controller writes velocity amplitude to servo controller, and servo controller is according to speed preset value, with real-time
Current value is monitored, by setting the current limit of servo controller in man-machine interface, to reach lath cutter speed and tension
Control requires.
(3) programmable controller calculates main shaft motor output speeds by main speed given value, passes through main transmission
The encoder values programmable controller of axis reads actual motion velocity amplitude for calculating the output revolving speed of other motors to reach
To the demand of entire cutting plate machine control system；Each motor output speeds calculation formula is.
Main shaft motor output speeds Z=V/A × R,
Crosscutting motor output speeds H=Z/L × R,
Longitudinal sectional motor output speeds Q=Z/B × R,
High-speed motor exports revolving speed G=Z/B × R,
Slowspeed machine exports revolving speed D=Z/B × R,
Paper motor output speeds P=Z/L × R is clapped,
Wherein V is main speed given value, and A is transmission shaft perimeter, and R is reduction gearbox reduction ratio, and B is driven roller perimeter, and L is slurry
Plate length.
(4) electric current real value and speed preset value are monitored in man-machine interface in real time, and electric current is limited on the control panel
Amplitude and speed preset value are finely tuned.
The utility model has the beneficial effects that by the speed preset between programmable controller and servo controller, according to
The actual current value of servo controller limits the maximum current of servo controller, and current limit can be in control plane
It is modified on plate according to real-time current, by the limitation to electric current, the operation for keeping the velocity amplitude of lath cutter stable, of pulpboard
Power also available control, thus reach the velocity balance between lath cutter and pulp machine, the master to be returned by encoder feedback
Speed preset of the transmission shaft real-time speed value as other axis, thus reach follow-up equipment velocity-stabilization and pulpboard size it is steady
It is fixed.
Detailed description of the invention
Fig. 1 is lath cutter speed and tension control system structure main view.
Fig. 2 is lath cutter speed and tension control system structure side view.
Fig. 3 is speed flow diagram.
In figure: 1- encoder, 2- main driving motor, 3- revolving knife motor, 4- high speed translator, 5- low speed translator, 6-
Clap paper motor.
Specific embodiment
Embodiment with reference to the accompanying drawing is further described the utility model.
Lath cutter speed and tension control system, including 1- encoder, 2- main driving motor, 3- revolving knife motor, 4- high
Speed belt motor, 5- low speed translator, 6- clap paper motor, servo controller, programmable controller, DP coupler, man-machine interface with
Bus cable, programmable controller are connected simultaneously by the way of Profibus-DP with pulpboard machine control system by DP coupler
The main vehicle speed value that pulp machine gives is converted into servo controller speed preset value by data calculating to show in man-machine interface；
1- encoder is mounted on above main shaft speed reducer output shaft, and 1- encoder is connected by cable with servo controller, is used for
The actual speed of real-time measurement main shaft；Servo controller is mounted in power distribution cabinet for driving the motor of main shaft, is watched
It takes controller and man-machine interface is communicated by way of Profinet with programmable controller, servo controller passes through speed
Given value and real-time current value realize the speed and tension adjustment of main shaft；Man-machine interface is installed on above control cabinet for leading
The adjustment and parameter setting of given speed.
The many motors control motor, as shown in Fig. 1, including 2- main driving motor, 3- revolving knife motor, 4- high speed
Translator, 5- low speed translator, 6- clap paper motor.
The control method of lath cutter speed and tension control system, comprising the following steps:
(1) speed is transmitted to programmable controller by Profibus-DP by pulp machine slurry, and programmable controller is by velocity amplitude
It writes to servo controller, servo controller is according to speed preset value, to real-time monitor current value, by setting in man-machine interface
The current limit of servo controller, to reach the control requirement of lath cutter speed and tension.
(2) when being carried according to band, when pulpboard reaches maximum tension, servo controller current value as maximum current amplitude limit value,
Made comparisons according to the real-time current value shown in man-machine interface with current limit, by fine speed adjustment, make real-time current value with
Current limit is close, and pulpboard tension reaches best at this time.
(3) programmable controller calculates main shaft motor output speeds by main speed given value, passes through main transmission
The encoder values programmable controller of axis reads actual motion velocity amplitude for calculating the output revolving speed of other motors to reach
To the demand of entire cutting plate machine control system；Each motor output speeds calculation formula are as follows:
Main shaft motor output speeds Z=V/A × R,
Crosscutting motor output speeds H=Z/L × R,
Longitudinal sectional motor output speeds Q=Z/B × R,
High-speed motor exports revolving speed G=Z/B × R,
Slowspeed machine exports revolving speed D=Z/B × R,
Paper motor output speeds P=Z/L × R is clapped,
Wherein V is main speed given value, and A is transmission shaft perimeter, and R is reduction gearbox reduction ratio, and B is driven roller perimeter, and L is slurry
Plate length.
(4) in actual moving process, when speed preset value increase, current limit is too small, this when tension with regard to inadequate,
It needs to increase current limit, to achieve the purpose that increase tension, vice versa, and when speed preset is excessively high, current limit is too big, this
Pulpboard will be caused to be broken due to overtension when a, be given by real time monitoring electric current real value and speed in man-machine interface
Definite value, and current limit and speed preset value are finely tuned on the control panel, to reach the requirement of pulpboard tension force.
The utility model realizes lath cutter speed and tension control by using programmable controller and servo-control system
System, reduces hardware cost, keeps system more stable.The utility model has universal applicability.Using lath cutter speed and
Tension control method reduces the failure rate of equipment, reduces since tension force is bad in production process, and the pulpboard generated
The wasting of resources caused by fracture, is greatly improved productivity.
Claims (1)
1. lath cutter speed and tension control system, it is characterised in that: including encoder, threephase asynchronous machine, servo controller,
Programmable controller, DP coupler, man-machine interface and bus cable, programmable controller are used by DP coupler
The mode of Profibus-DP is connected with pulpboard machine control system and the main vehicle speed value for giving pulp machine calculates conversion by data
It is shown in man-machine interface at servo controller speed preset value；Encoder is mounted on above main shaft speed reducer output shaft,
Encoder is connected by cable with servo controller, the actual speed for real-time measurement main shaft；Servo controller installation
For driving the motor of main shaft in power distribution cabinet, servo controller and man-machine interface by way of Profinet with can compile
Range controller is communicated, and servo controller realizes the speed and tension of main shaft by speed preset value and real-time current value
It adjusts；Man-machine interface is installed on the adjustment and parameter setting that main given speed is used for above control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920333894.4U CN209665536U (en) | 2019-03-17 | 2019-03-17 | Lath cutter speed and tension control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920333894.4U CN209665536U (en) | 2019-03-17 | 2019-03-17 | Lath cutter speed and tension control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209665536U true CN209665536U (en) | 2019-11-22 |
Family
ID=68571754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920333894.4U Active CN209665536U (en) | 2019-03-17 | 2019-03-17 | Lath cutter speed and tension control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209665536U (en) |
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2019
- 2019-03-17 CN CN201920333894.4U patent/CN209665536U/en active Active
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Address after: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee after: China Light Changtai (Changsha) Intelligent Technology Co.,Ltd. Address before: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee before: CHANGSHA CHAINT MACHINERY Co.,Ltd. |