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Automatic constant-linear-speed control system of film applicator

An automatic control system and constant linear velocity technology, applied in the direction of digital control, electrical program control, textile processing machine accessories, etc., can solve problems such as difficult to achieve constant linear velocity, and achieve the effect of reducing labor intensity and uniform longitudinal thickness of the film

Inactive Publication Date: 2012-07-11
TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the existing film scraping machine adopts manual control in speed control and it is difficult to achieve constant linear speed, the present invention provides an automatic control system for constant linear speed of scraping film machine

Method used

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  • Automatic constant-linear-speed control system of film applicator
  • Automatic constant-linear-speed control system of film applicator
  • Automatic constant-linear-speed control system of film applicator

Examples

Experimental program
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Embodiment Construction

[0011] The structure and control principle of the constant linear speed automatic control system of the film scraping machine of the present invention are shown in Figure 1-Figure 3 As shown, the motor is connected to the reel of the cloth receiving roller 4, the cloth releasing roller 3 is installed on the front of the cloth receiving roller 4, the auxiliary roller 2 is installed between the cloth releasing roller 3 and the scraping roller 1, and the speed detection roller 5 is installed above the auxiliary roller 2. A speed detection device is installed on the speed detection roller 5, and the speed detected by the speed detection device is compared with a given speed to form a closed-loop control through a frequency converter connected to a motor.

[0012] This system adopts the method of direct transmission of the reel (that is, the reel is directly driven by the motor). During the winding process, the winding speed v is required to be a constant value. This requires that...

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Abstract

Disclosed is an automatic constant-linear-speed control system of a film applicator. A motor is connected with a scroll of a cloth reeling roll, a cloth unreeling roll is mounted in front of the cloth reeling roll, an auxiliary roll is mounted between the cloth unreeling roll and a film applicator roll, a speed detection roll is mounted above the auxiliary roll, a speed detecting device is mounted on the speed detecting roll, and the speed detecting device is connected with the motor to form closed-loop control through a frequency converter after the speed detected by the speed detecting device is compared to a given speed. The motor connected with the scroll is controlled in a frequency-variable speed regulation manner, , a closed-loop control system for film applying speed is realized under PI (proportional integral) control by comparing measuring signals to set signals, speed accuracy is controlled within + / -0.5%, the longitudinal thickness of the film is more uniform, and labor intensity of operators is alleviated.

Description

technical field [0001] The invention relates to the technical field of constant line speed automatic control of a film scraping machine. Background technique [0002] The existing scraping machine such as figure 1 As shown, the film-making speed is manually monitored. When the speed deviates from the given value, the moving point of the potentiometer of the frequency converter is manually changed to change the output of the frequency converter, thereby changing the armature voltage of the motor, changing the speed of the motor, and making the system The film speed is restored to the required value, so that the entire film production speed becomes a manual control system, and it is difficult to guarantee a constant linear speed through adjustment based on personal experience. Contents of the invention [0003] In order to overcome the problem that the existing film scraping machine adopts manual control in speed control and it is difficult to realize constant linear speed,...

Claims

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Application Information

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IPC IPC(8): D06B23/00G05B19/18
Inventor 冀献丽尹中升俞锋王勇凯祁霜
Owner TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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