Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for controlling stability of rolling and unrolling of coating machine

A control method and stability technology, which is applied in the control field of coating machine unwinding and winding stability, can solve problems such as production stop, system stability damage, and untreated problems, so as to ensure stability, accurate speed control, and tension constant effect

Inactive Publication Date: 2013-09-11
SNTO TECH GRP
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing speed control, the coil diameter sensor signal is easily affected by factors such as ambient temperature and humidity and fluctuates greatly, and its signal has not been processed in the PLC, and it is directly transmitted to the frequency converter after calculation. Observed in the monitoring interface, sometimes there is a fluctuation of 500mm, which will cause damage to the stability of the entire system and even cause production to stop

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A control method for unwinding and rewinding stability of a coating machine, the control method includes four steps of sensor detection of coil diameter, data signal conversion, PLC controller operation, and frequency conversion speed regulation, and signal prevention is performed before the frequency conversion speed regulation step. Jitter processing, the processing method is:

[0023] a. Sampling the input values ​​of the uncoiling and rewinding diameter sensors for multiple times respectively, and the sampling time is t respectively 1 , t 2 , t 3 ......t n , the measured uncoil diameter values ​​are respectively a 1 、a 2 、a 3 ......a n ; The winding diameter values ​​are respectively b 1 , b 2 , b 3 ......b n ;

[0024] b. According to the volume diameter value measured by sampling, the PLC controller performs calculation: calculate a in turn 1 -a 2 , a 1 -a 3 ......a 1 -a n The difference between and b 1 -b 2 , b 1 -b 3 ......b 1 -b n the dif...

Embodiment 2

[0030] A control method for unwinding and rewinding stability of a coating machine, the control method includes four steps of sensor detection of coil diameter, data signal conversion, PLC controller operation, and frequency conversion speed regulation, and signal prevention is performed before the frequency conversion speed regulation step. Jitter processing, the processing method is:

[0031] a. Sampling the input values ​​of the uncoiling and rewinding diameter sensors for multiple times respectively, and the sampling time is t respectively 1 , t 2 , t 3 ......t n , the measured uncoil diameter values ​​are respectively a 1 、a 2 、a 3 ......a n ; The winding diameter values ​​are respectively b 1 , b 2 , b 3 ......b n ;

[0032] b. According to the volume diameter value measured by sampling, the PLC controller performs calculation: calculate a in turn 1 -a 2 , a 1 -a 3 ......a 1 -a n The difference between and b 1 -b 2 , b 1 -b 3 ......b 1 -b n the dif...

Embodiment 3

[0038] A control method for unwinding and rewinding stability of a coating machine. The control method includes four steps: sensor detection of coil diameter, data signal conversion, PLC controller operation, and frequency conversion speed regulation. Before the frequency conversion speed regulation step, signal prevention is performed. Jitter processing, the processing method is:

[0039] a. Sampling the input values ​​of the uncoiling and rewinding diameter sensors for multiple times respectively, and the sampling time is t respectively 1 , t 2 , t 3 ......t n , the measured uncoil diameter values ​​are respectively a 1 、a 2 、a 3 ......a n ; The winding diameter values ​​are respectively b 1 , b 2 , b 3 ......b n ;

[0040] b. According to the volume diameter value measured by sampling, the PLC controller performs calculation: calculate a in turn 1 -a 2 , a 1 -a 3 ......a 1 -a n The difference between and b 1 -b 2 , b 1 -b 3 ......b 1 -b n the differen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for controlling stability of rolling and unrolling of a coating machine. The method includes the four steps of roll diameter detection achieved through a sensor, data signal conversion, PLC operation and frequency control. Signal anti-shaking processing is carried out before the step of frequency control. A roll diameter input value is judged in a PLC, and when a1-an<30-80mm and b1-bn<30-80mm, the PLC transmits the value of an and the value of bn to a speed regulation device so that speed regulation calculation can be carried out, and a rotating speed value can be respectively fed back to a rolling motor and an unrolling motor. According to the method for controlling the stability of rolling and unrolling of the coating machine, shaking signals can be effectively prevented from being transmitted, and rolling and unrolling of the coating machine are more stable.

Description

technical field [0001] The invention relates to a control method in a coating machine, in particular to a control method for the unwinding and rewinding stability of the coating machine. Background technique [0002] In the uncoiling and rewinding control system of the coating machine, during the unwinding and rewinding process of the uncoiling and rewinding stations, the coil diameter changes in real time. In order to keep the tension of these two stations constant, it must In the existing coating machine design scheme, the data measured by the roll diameter sensor is transmitted to the PLC through the AD module, and the PLC performs corresponding calculations and then transmits it to the frequency converter. The frequency converter controls the motor speed after calculating the speed. This keeps the strip tension constant at the uncoiling and rewinding stations. [0003] In the existing speed control, the coil diameter sensor signal is easily affected by factors such as a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
Inventor 不公告发明人
Owner SNTO TECH GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com