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Segmented start-up acceleration control method for DC variable frequency motors for circular looms

A DC variable frequency motor, acceleration control technology, applied in looms, textiles, textiles and papermaking, etc., can solve the problems of slow start, large resistance, large energy consumption, etc., and achieve the goals of improving efficiency, intelligent automation, energy saving and environmental protection, and saving investment Effect

Inactive Publication Date: 2017-10-03
CANGNAN HUAZHONG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current circular looms on the market have constant motor power during the start-up process, but due to the large resistance when starting the circular loom, the start-up is slow and consumes a lot of energy

Method used

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  • Segmented start-up acceleration control method for DC variable frequency motors for circular looms

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Such as figure 1 Shown, a kind of circular loom with DC frequency conversion motor segmental startup acceleration control method, described

[0011] The circular loom includes main machine, let-off system, winding device, frame and DC variable frequency motor control

[0012] The main engine includes a DC frequency conversion motor, a transmission system, a warp opening mechanism and a weft insertion mechanism, and is characterized in that: a motor speed detection device cooperates with a DC frequency conversion motor controller to control the starting speed of the main engine of the circular loom in sections, It includes the following steps:

[0013] S1: Segment the start-up acceleration process of the motor, and establish the speed reference point at the end of the segment and the allocation time of each segment in the DC variable frequency motor controller according to the final normal operating speed, the total time required for start-up and the built-in segment nu...

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PUM

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Abstract

Disclosed is a high-efficiency energy-saving direct-current variable frequency motor sectional starting acceleration control method for a circular weaving machine. The circular weaving machine comprises a mainframe, a let-off system, a winding device, a rack and a direct-current variable frequency motor controller, and the mainframe comprises a direct-current variable frequency motor, a transmission system, a warp untangling mechanism and a weft insertion mechanism. The method is characterized in that a motor speed detection device cooperates with the direct-current variable frequency motor controller to sectionally control starting speed of the mainframe of the circular weaving machine, and sectional acceleration control is adopted, so that acceleration value of running speed of the motor is increased along with starting acceleration time; starting time is shortened, two-time tracking positioning and tail speed control can be realized in the aspect of acceleration point control, and optimal control of starting acceleration is realized; efficiency of the circular weaving machine is improved greatly, and the method is intelligent, automatic, energy-saving and environment-friendly. A system is arranged in the high-efficiency energy-saving variable frequency motor controller, and parameters of the system can be set before leaving a factory and can also be modified subsequently.

Description

technical field [0001] The invention relates to the technical field of a weaving machine, in particular to a start-up acceleration control method for a high-efficiency energy-saving DC variable frequency motor specially used for a circular loom. Background technique [0002] A general circular loom includes a main engine, a warp let-off system, a winding device, and a frame; the main engine includes a main motor, a transmission system, a warp opening and delivery mechanism, and a weft insertion mechanism, and the weft insertion mechanism includes an upper door ring, a lower door ring, Connecting columns, shuttles and propellers; the transmission system includes a pulley, a main shaft, and a support; the working principle of the host machine: the main shaft driven by a motor drives a small cam to rotate, and then the small cam drives the lever to swing back and forth around a fixed point, and finally the The end of the lever drives the inner and outer heald belts to reciproca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D51/12
CPCD03D51/12
Inventor 黄君华蒋友谊
Owner CANGNAN HUAZHONG ELECTROMECHANICAL