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Drawing frame

A drawing frame and sliver technology, applied in spinning machines, textiles and papermaking, drafting equipment, etc., can solve the problem of inability to output whiskers, and achieve the effects of simple structure, convenient use and strong industrial applicability

Inactive Publication Date: 2014-04-23
马建辉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the applicant knows, the ratio of mixed fibers on different cross-sections of the current drawing frame output whiskers is theoretically equal, and it is not yet possible to output two or more whiskers with different fiber component ratios on different cross-sections

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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Examples

Experimental program
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Effect test

Embodiment

[0022] Use drawing frame of the present invention, and merge polyester, cotton sliver according to the method of the present invention. The main process parameters are: 8 polyester and cotton slivers, the initial feeding mass ratio is 50 / 50; the polyester sliver is fed from the rear roller A area, the cotton sliver is fed from the rear roller B area, and the left stepping motor M 1 The number of pulses N 1 Change according to the law of sinusoidal curve; right stepping motor M 2 The number of pulses N 2 according to changes in the law. On the control panel, set the total draft multiple of the draw frame, and the left stepping motor M 1 , right stepping motor M 2 The starting speed is n 0 , and then start the draw frame, when the left stepper motor M 1 with the right stepper motor M 2 The speed reaches n 0 When, the left stepper motor M 1 The speed changes according to the sinusoidal law from n 0 →2n 0 →n 0 →0, right stepping motor M 2 at the speed of The regul...

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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Abstract

The invention discloses a drawing frame which is composed of a feeding mechanism, a combining mechanism, a drafting mechanism, an output mechanism and a transmission control mechanism. The drawing frame is characterized in that a rear roller of the drafting mechanism is composed of a left rear roller, a right rear roller and a rear roller shaft. The left rear roller is fixedly connected with the rear roller shaft, and the right rear roller is sleeved on the rear roller shaft moveably. A rubber roller matched with the rear roller comprises a left rear roller upper rubber roller, a right rear roller upper rubber roller and a central shaft. The left rubber roller and the right rubber roller are fixed on the central shaft, and the central shaft is fixed and does not rotate. The left rear roller upper rubber roller rotates independently through the matched left rear roller, and the right rear roller upper rubber roller rotates independently through the matched right rear roller. Output speeds do not interfere with each other. Two independent holding jaws are formed. The transmission control mechanism is matched with the structure of the rear roller, output speeds of the left rear roller and the right rear roller are controlled by a left stepping motor and a right stepping motor, and the total amount of strips output by the rear roller is not changed.

Description

technical field [0001] The invention belongs to the technical field of textiles, and is specifically designed as a drawing frame. Background technique [0002] A draw frame is a spinning preparation device. Its function is to make the fibers in the strands straight and parallel through drafting and merging, reducing hooks and reducing the weight unevenness of the output strands. When two or more fiber strands are fed into the draw frame in the same or different proportions, corresponding output strands with the same or different blending ratios can be obtained and further processed into blended yarns. As far as the applicant knows, the proportions of mixed fibers on different cross-sections output by the draw frame are theoretically equal, and it is not yet possible to output two or more whiskers with different fiber component ratios on different cross-sections. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the technical problem to be so...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H5/32D01H5/74
Inventor 马建辉董卫国
Owner 马建辉
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