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Traction device for on-line detecting drafting force of short fibre bundle

A drafting device and drafting force technology, used in drafting equipment, textiles and papermaking, spinning machines, etc., can solve the problem that the drafting element cannot meet the drafting and measurement at the same time, interfere with the drafting system, and the drafting force error is large. and other problems, to achieve the effect of reducing mass inertia and mechanical interference, improving detection accuracy, and avoiding swinging

Inactive Publication Date: 2011-06-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a drafting device for online detection of the drafting force of short fiber bundles to solve the problem that in the prior art, the detection element is directly in contact with the fibers in the drafting area, which interferes with the drafting system, and the measured draft The error of the stretching force is large, and the drafting element cannot meet the drafting and measurement at the same time, and there will be interference between the two

Method used

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  • Traction device for on-line detecting drafting force of short fibre bundle
  • Traction device for on-line detecting drafting force of short fibre bundle
  • Traction device for on-line detecting drafting force of short fibre bundle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as image 3 As shown, three-roller drafting is adopted, and the front roller is a swing roller.

[0034] The front rollers 1, 2, 3, 4 can swing around the pivot 6 as a whole.

[0035]The bottom roller seat 4 of the front roller is telescopically adjustable, so that the shaft center distance of the pulley 10 and the pulley 12 can be adjusted. Bottom roller seat 4 is made up of two parts, and during adjustment, these two parts can slide relatively, be fixed by set screw 13 then. Its advantage is that there is no need to add additional parts such as tensioning wheels, thereby reducing the swing inertia of the swing roller seat and reducing the interference to the draft force detection; however, if the length of the bottom roller seat is adjusted, the vertical position of the roller jaw will change. Change, in order to ensure that the vertical position of the roller jaw remains unchanged, the vertical height of the pivot support 6 needs to be adjusted, therefore, the...

Embodiment 2

[0038] Such as Figure 4 As shown, three-roller drafting is adopted, and the front roller is a swing roller.

[0039] The front rollers 1, 2, 3, 4 can swing around the pivot 6 as a whole.

[0040] On the lower roller seat 4 of the front roller, two symmetrical tensioning pulleys 19 are installed through the support shaft 18, so that the tensioning pulleys 19 directly act on the belt or the synchronous belt 11, and the belt or the synchronous belt are tensioned. The support shaft 18 and the two tensioning wheels 19 are made of light materials, which can reduce the swing inertia brought to the swing roller seat; the two tensioning wheels 19 are installed in a symmetrical form, the purpose is to facilitate the force balance, Avoid causing the swing of the roller seat.

[0041] If the drafting force of the strands in the front drafting area changes, it will cause the front rollers 1, 2, 3, and 4 to swing as a whole with the pivot 5 as the axis. The drafting force is proportional...

Embodiment 3

[0043] Such as Figure 5 As shown, three-roller drafting is adopted, and a pressure bar 20 is installed in the front drafting area to strengthen the control of fibers in the drafting area; the front roller is a swinging roller.

[0044] The front rollers 1, 2, 3, 4 can swing around the pivot 6 as a whole.

[0045] The bottom roller seat 4 of the front roller can be telescopically adjusted, so that the axial distance between the lower pulley 10 and the upper pulley 12 can be adjusted. Bottom roller seat 4 is made up of two parts, and during adjustment, these two parts can slide relatively, be fixed by set screw 13 then. Its advantage is that there is no need to add additional parts such as tensioning wheels, thereby reducing the swing inertia of the swing roller seat and reducing the interference to the draft force detection; however, if the length of the bottom roller seat is adjusted, the vertical position of the roller jaw will change. Change, in order to ensure that the v...

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PUM

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Abstract

The present invention discloses an extension device to on line detect the extension force of the short fiber bunch. The invention comprises at least two pairs of extension areas comprised by rollers; one pair of the roller is fixedly located and the other pair of roller can swing as a unity along the pivot; the swing roller comprises an upper roller, a lower roller and a saddle; the upper roller base (3) is connected with the lower roller base (4) through the pressing bolt(14); the lower roller base (4) is movably sleeved on the pivot(5); the pivot (5) is arranged on the machine frame (7) through the pivot saddle (6); the power resource passes through the transmission structure and sends the collected signal to the extension detecting system (17) to detect the change of the extension force; the invention reduces the interference to the detecting of the extension force; and the invention enhances the detecting precision of the extension force greatly.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to a drafting device for online detection of the drafting force of short fiber bundles. Background technique [0002] Drafting mainly occurs in processes such as drawing, carding, roving, and spinning. Drafting is the process of drawing and thinning continuous short fiber bundles (commonly known as "shafts"). Drafting causes a relative displacement of the fibers in the axial direction of the sliver, thereby distributing the fibers over a longer length. Its purpose is to draw and draw the spun sliver and improve the parallel straightness of the fibers. [0003] A typical draft is a roller draft. As shown in the figure, the roller drafting device usually includes multiple pairs of rollers, each pair of rollers forms a holding point for the strands, and the rotation speed of each pair of rollers becomes faster and faster along the direction of fiber conveying. Larger relative speed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H5/22D01H5/70D01H13/32
Inventor 陈革杨崇倡王永兴吴兴宽李姝佳孟超群冯培崔斌王小轩李春雷
Owner DONGHUA UNIV