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Spinning tension online adjusting method achieving even tension spinning

A tension and spinning technology, applied in the field of spinning, can solve the problems of unable to adjust the dynamic value of spinning tension, not considering the influence of balloon spinning tension changes, unable to achieve uniform tension spinning, etc.

Active Publication Date: 2017-10-20
NINGBO DECHANG PRECISION TEXTILE MACHINERY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing speed regulation theory is to regulate the speed according to the preset speed, that is, to regulate the speed according to the average value, and not to regulate the speed according to the real dynamic tension of the sliver during the spinning process, although it can partially reduce the The average value of the yarn tension, but the dynamic value of the spinning tension cannot be adjusted, and there is a problem that the speed control is not synchronized with the change of the spinning tension
At the same time, the existing speed regulation theory uses speed as the control method, and does not consider the influence of factors such as the height and shape of the balloon, the fineness of the yarn, the position of the ring plate, the winding radius of the bobbin, and the weight of the traveler on the change of the spinning tension. Therefore, it is impossible to realize the uniform tension spinning in the strict sense

Method used

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  • Spinning tension online adjusting method achieving even tension spinning
  • Spinning tension online adjusting method achieving even tension spinning
  • Spinning tension online adjusting method achieving even tension spinning

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as image 3 As shown, the spinning tension on-line control method for realizing uniform tension spinning described in the present invention comprises the following steps:

[0046] (1) First, the spinning tension of the ring spinning frame is detected online by the spinning tension detection device;

[0047] In order to be able to realize the automatic detection of the spinning tension of the ring spinning frame, four functional requirements need to be met: first, the device is stable and does not affect the jointing, doffing and cleaning work of employees; second, the signal is automatically collected with the change of spinning tension Spinning equipment; the third is to process the collected signal and convert the data output function; the fourth is to obtain the test results to display on the screen, print or apply to control the spinning tension of the whole machine. Such as figure 1 , figure 2 As shown, the spinning tension detection device of the present ...

Embodiment 2

[0102] Spinning variety: C18.5tex, 11917r / min, main motor display 48Hz, spinning when the uniform tension system is off and on, and the data collection time is 30 minutes. The uniform tension control of spinning in the small yarn stage is 0.9 times of the maximum tension, and the online uniform tension control effect is as follows: Figure 9 , as shown in Table 2; the spinning uniform tension control in the middle yarn stage is 1.1 times of the maximum tension, and the online uniform tension control effect is as follows Figure 10 , as shown in Table 3; the spinning uniform tension control in the large yarn stage is 0.85 times of the maximum tension, and the online uniform tension control effect is as follows Figure 11 , Table 4. The yarn quality and yarn breakage rate after the uniform tension system is turned on are shown in Table 5 and Table 6.

[0103] Table 2 Comparison before and after tension leveling in the small yarn stage

[0104]

[0105] Table 3 Comparison b...

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Abstract

The invention relates to a spinning tension online adjusting method achieving even tension spinning. The spinning tension online adjusting method includes the following steps: (1) firstly performing online detection to acquire the spinning tension; and (2) performing calculation conversion to acquire the corresponding spindle speed according to the spinning tension, and adjusting the spinning speed; reducing the output frequency of a frequency converter while the spinning tension detected by the step (1) is greater than a preset value so as to reduce the spindle speed and lower the spinning tension; otherwise, improving the output frequency of the frequency converter while the spinning tension is less than the preset value so as to accelerate the spindle speed and improve the spinning tension. According to the spinning tension online adjusting method achieving even tension spinning, the detected online transient spinning tension is used as a criterion, the spinning speed is adjusted so as to control the transient dynamic spinning tension (the twisting sliver tension, the ballooning sliver tension, and the winding sliver tension) and changes thereof in a reasonable range, and then fluctuation of the spinning tension is reduced, spinning broken ends are reduced, and the yarn quality is improved.

Description

technical field [0001] The invention relates to an online regulating method of spinning tension for realizing uniform tension spinning, and belongs to the technical field of spinning. Background technique [0002] Ring spinning is the yarn forming process of drafting, twisting and winding process on roving. tension on the segment. Usually, the area from the rear bell mouth (or rear roller nip) to the front roller nip is called the drafting area of ​​the yarn, and the area from the front roller nipper to the yarn guide hook is called the yarn sliver. The twisting area; the high-speed rotating arc-shaped sliver from the guide hook to the traveler is called the balloon area of ​​the sliver; the area from the traveler to the winding point on the high-speed rotating spindle is called the sliver winding area. In the process of ring spinning, the spinning tension in a broad sense refers to the tension on the sliver in the twisting zone, balloon zone and winding zone, which are c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H13/10D01H13/32
Inventor 徐时平薛元张毅韩晨晨杨瑞华沈华清王西京
Owner NINGBO DECHANG PRECISION TEXTILE MACHINERY