Drafting device and control method of flyer frame

A technology of drafting device and roving frame, which is applied in spinning frame, drafting equipment, textile and paper making, etc. Yarn quality, the effect of extending the draft ratio

Inactive Publication Date: 2007-12-26
TIANJIN HONGDA TEXTILE MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The drafting device of the roving frame in the prior art is a four-roller drafting type, as shown in Figure 1, which has the following disadvantages: the main drafting ratio in the middle area is relatively high, which has a bad influence on the evenness of the roving; Because of the long uncontrolled zone, it is unfavorable for the control of floating fibers, and it is also unfavorable for the evenness of roving
[0004] Therefore, there are still quality problems in the evenness of the roving spun by the current four-roller double-apron drafting mode, and there is a need for further technical improvement

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
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  • Drafting device and control method of flyer frame

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Embodiment Construction

[0012] The invention is a new drafting device and a control method for a roving frame. As shown in Figure 2, in the drafting roller configuration of the present invention, there are still four rows of metal material bottom rollers 1 to 4, and four rows of top rollers 5 to 8, wherein the second metal material bottom roller is a cover ring, and the diameter is changed from the original The 28mm metal material groove roller of the drafting type is changed to a metal knurling roller with a diameter of 25 to 30mm. The diameter of the bottom roller in this embodiment is the groove roller of Φ28mm and the knurled roller of Φ25mm from front to back. , Φ25mm knurled rollers, Φ28mm groove rollers; the second top roller is a cover ring, the diameter of which is changed from the 28mm covered elastic top roller of the original drafting type to the metal material with a diameter of 25 to 28mm Smooth apron top rollers or smooth surface rollers covered with elastic materials, the diameters of...

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Abstract

This invention relates to a drafting system and a control method for roving machines, in which the drafting system includes a four roller drafting pattern, a four roller double-zone double apron drafting pattern, the four lines of lower rollers contain the following from the front to back: the first includes a metal groove roller, the second includes a metal knurling roller, the third is metal knurling roller and the fourth includes a metal groove roller, the four lines of upper rollers are: the first one is a roller cladding spring materials, the second is a metal apron roller or an apron upper roller cladding spring materials, the third one is a metal apron upper roller or an apron upper roller cladding spring materials and the fourth one is a belt roller cladding spring materials. The control method includes: double -apron low times of drafting is done for the front region, 2.5-10 times of double-apron middle times of drafting for the middle region and 1.1-2 times of low drafting for the back region.

Description

technical field [0001] The invention relates to a roving frame used in the pre-spinning process flow, in particular to a drafting device and a control method of the roving frame. Background technique [0002] One of the important technical purposes of the roving frame is to draw and draw the drawn sliver into fine and uniform roving. The above tasks are mainly completed by the drafting device in the roving frame. For hundreds of years, domestic and foreign textile technicians have devoted themselves to researching various drafting modes, so that the drafting mode of the roving frame has developed from simple roller drafting to three-up and four-down curve drafting, and then developed to the currently dominant Three-roller double-apron and four-roller double-apron drafting type. [0003] The drafting device of the roving frame in the prior art is a four-roller drafting type, as shown in Figure 1, which has the following disadvantages: the main drafting ratio in the middle a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H5/22
Inventor 陈谷人刘敦平李向杰王玥王学俊冯广轩
Owner TIANJIN HONGDA TEXTILE MACHINERY
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