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Spinning drawing-out drafting machine

A technology of drafting and drafting area, applied in the field of spinning drawing frame drafting mechanism, can solve the problems of poor versatility, inability to meet the needs of testing and small batch production, etc., achieve enhanced control, increase the adjustment range, and improve drafting efficiency effect

Inactive Publication Date: 2008-07-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a spinning drawing frame and drafting mechanism to solve the defects in the prior art of poor versatility and inability to meet the needs of testing and small batch production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] As shown in Fig. 1, a kind of spinning drawing frame drafting mechanism is composed of roller-type drafting mechanism A and semi-arc pressure bar B, and described roller-type drafting mechanism A is composed of three sets of rollers, top roller pairs Composition, divided into rear drafting zone I composed of middle and rear rollers and top rollers and front drafting zone II composed of front, middle rollers and top rollers. Diameter d of front, middle and rear rollers 1 、d 2 、d 3 Both are 35mm; three top rollers D 1 、D 2 、D 3 The diameter is 38mm. The semi-arc pressure bars B are respectively installed in the rear drafting zone I and the front drafting zone II, and can be easily disassembled as required. Because the pressure bar B that helps to control the movement of fibers is added in the rear drafting area, the drafting ratio of the rear area can be greatly increased to 2.5, thus significantly improving the drafting efficiency. The drafting ratio of the front a...

Embodiment 2

[0029] As shown in Fig. 1, a kind of spinning drawing frame drafting mechanism is composed of roller-type drafting mechanism A and semi-arc pressure bar B, and described roller-type drafting mechanism A is composed of three sets of rollers, top roller pairs Composition, divided into rear drafting zone I composed of middle and rear rollers and top rollers and front drafting zone II composed of front, middle rollers and top rollers. Diameter d of front, middle and rear rollers 1 、d 2 、d 3 Both are 35mm; three top rollers D 1 、D 2 、D 3 The diameter is 39mm. The draft ratio of the rear area is 3, and the draft ratio of the front area is 5; the center distance between the middle and rear rollers is L 1 100mm; center distance L between front and middle rollers 2 110mm, pressurized P on the front top roller 1 , the pressure P on the middle top roller 2 and pressurized P on the rear top roller 3 They are respectively adjusted within the range of 900N, 700N, and 700N, and the...

Embodiment 3

[0036] As shown in Figure 1, a spinning drawing frame drafting mechanism is composed of a roller-type drafting mechanism A and a semi-arc pressure bar B. The roller-type drafting mechanism A consists of three sets of rollers and a pair of top rollers. Composition, divided into rear drafting zone I composed of middle and rear rollers and top rollers and front drafting zone II composed of front, middle rollers and top rollers. Diameter d of front, middle and rear rollers 1 、d 2 、d 3 Both are 35mm; three top rollers D 1 、D 2 、D 3 The diameter is 40mm. The draft ratio of the rear area is 2.5, and the draft ratio of the front area is 5; the center distance between the middle and rear rollers is L 1 95mm; center distance L between front and middle rollers 2 is 100mm, the pressure P on the front top roller 1 , the pressure P on the middle top roller 2 and pressurized P on the rear top roller 3 Adjusted within the range of 1000N, 700N, and 700N respectively, the output speed...

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Abstract

The invention relates to a drawing and drafting mechanism for spinning, comprising a roller drafting device A; wherein the roller drafting device A comprises a drafting area I and a drafting area II, the two drafting areas are composed by three group rollers and rubber rollers. The drawing and drafting mechanism for spinning is characterized in that the drafting mechanism also comprises a press bar B, and doubles the drafting multiple of the back area at least and improves the drafting efficiency, greatly increases the centre distance adjusting range of the rollers in the front area and the back area, ensures successful processing of fur, hemp and silk fiber, and greatly improves the versatility of the equipment; the drawing and drafting mechanism especially considers the usage in the experiment, so the delivery speed can be adjusted between 30m / min to 300m / min, thereby meeting the requirement of parameter adjusting in various processing and experiment, and avoiding the waste of raw material.

Description

technical field [0001] The invention belongs to the field of textile machinery, in particular to a spinning drawing frame and drafting mechanism. Background technique [0002] Drawing frame is a main process in spinning, it is to combine multiple fiber slivers together, and form a new sliver after drafting to meet the requirements of subsequent processing. The main problem in drafting is that the fiber movement must be well controlled during the drafting process to improve the uniformity of the output sliver. At the same time, the drafting multiple can also be increased to improve the production efficiency of drafting. [0003] Due to the different properties of fibers (mainly length), the drawing frames used are also different. In the existing spinning system, the roller-type draw frame is mainly used for cotton spinning; while in wool spinning, hemp spinning and silk spinning, due to their long fiber length and poor length uniformity, in order to control fiber movement an...

Claims

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Application Information

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IPC IPC(8): D01H5/22D01H5/30D01H5/46D01H5/74D01H5/44
Inventor 郁崇文王新厚汪军孙见原龚以炜
Owner DONGHUA UNIV
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