Method for realizing stepping control function of wrapper rollers of coiling machine
A technology for implementing methods and control functions, which is applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., and can solve problems such as hardware IO read and write speed lag, servo hydraulic characteristic aging, head indentation, etc.
Active Publication Date: 2021-12-28
UNIV OF SCI & TECH BEIJING
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] On the existing old production line, due to the limited conditions when the factory was built, there are some systemic problems, such as the lag of the hardware IO read and write speed, the aging of the servo hydraulic characteristics, etc., and the closed-loop control of the winding roller does not have a fast enough response time. The ideal dynamic response performance without overshooting, serious head indentation occurs in step control, and the collision impact of head bumps on the winding roller is large, etc.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0025] Such as Figure 1 ~ Figure 2 As shown, this embodiment discloses a method for realizing the stepping control function of the auxiliary winding roller of the coiler, and the realization method includes:
[0026] S1: Adjust the proportional coefficient k of the APC control of the three auxiliary rolls of the coiler respectively pi , observe the pure lag time t of the closed-loop response 0i , response time t ri and overshoo...
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
Login to View More Abstract
The invention discloses a method for realizing a stepping control function of wrapper rollers of a coiling machine. The method comprises the following steps of S1, respectively adjusting proportionality coefficients of APC control of the three wrapper rollers of the coiling machine, and observing pure lag time, response time and overshoot of closed-loop response; S2, setting the step amount when strip steel steps; S3, calculating the passing distance of the strip steel when the delay time is removed from the wrapper roller step control take-off command execution response time; S4, when the coiling machine coils a second circle and a third circle, when the distance between the head of the strip steel and the i wrapper roller is equal to the distance, sending a take-off command of the wrapper roller; and S5, when the head of the strip steel reaches the wrapper roller, stepping control is switched from position ring control to pressure ring control, and stepping is completed. The rapid performance of the stepping action is achieved by adjusting the proportionality coefficient, the safety of the stepping amplitude is achieved by considering the closed-loop overshoot, the distance between the head and the wrapper rollers during take-off is adjusted by adjusting the coefficient obtained by removing the lag time from the response time when the take-off action is executed, the take-off moment is accurately controlled, and the three wrapper rollers step safely and orderly.
Description
technical field [0001] The invention relates to the technical field of metallurgical automation control, in particular to a method for realizing the step control function of a winding-assisting roll of a coiler. Background technique [0002] Coiler auxiliary roll step control is an important function in the coiling area of hot continuous rolling. Step control requires the auxiliary roll to open the roll gap when the head of the strip arrives, and then continue to press the strip when the head passes , and at the same time point, only one of the three roll-helping rollers can be in a stepping state. Since the strip steel arrives at the coiler at a very fast speed, the stepping is performed during the second to third laps of coiling, so the time for the strip steel to wind around the reel during the stepping is very short, which requires the response speed of the auxiliary coiling roller to be very fast. quick. [0003] On the existing old production line, due to the limit...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B21C47/14B21B15/00
CPCB21C47/14B21C47/146B21B15/00B21B2015/0057B21B2201/06
Inventor 宗胜悦申屠南凯裴红平
Owner UNIV OF SCI & TECH BEIJING