Once ultrasonic cutting preparation method of automatic yarn spreading pre-steeping

A technology of ultrasonic cutting and automatic wire laying, which is applied in filament/thread forming, textile and papermaking, fiber processing, etc. It can solve the problems of difficulty in guaranteeing production efficiency, waste of raw materials, etc. The effect of service life and consumption reduction

Inactive Publication Date: 2007-04-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the requirements of the automatic laying process, the width of the automatic laying prepreg yarn is only a few mm, which is basically equivalent to the width of the yarn sheet unfolded by a single fiber bundle. If the preparation technology and equipment of the prepreg tape are used, only the The solution of reducing the width of the prepreg tape to a few mm to prepare the prepreg yarn will not only waste raw materials, but also difficult to guarantee the production efficiency

Method used

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  • Once ultrasonic cutting preparation method of automatic yarn spreading pre-steeping
  • Once ultrasonic cutting preparation method of automatic yarn spreading pre-steeping
  • Once ultrasonic cutting preparation method of automatic yarn spreading pre-steeping

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Embodiment Construction

[0018] The method provided by the present invention will be described below with reference to FIG. 1 .

[0019] As shown in Figure 1, after the multiple fiber bundles are exported from the creel 1, the fiber bundles are arranged in parallel by the yarn guide frame 2, and a cutting gap is reserved between each other. At the same time, the hot-melt resin is coated on the Prepare an adhesive film on the backing paper B drawn from the backing paper reel 4. The backing paper B has a layer on the top and bottom, and forms a sandwich structure with the flattened fiber F. Under the traction of the traction roller 6, they are heat-pressed together. Roller 5, the adhesive film is melted and impregnated with fiber F and then cooled and formed by cooling platform 7, and the upper backing paper B is collected by the upper backing paper taking reel 8, and then a layer of film P is coated on the upper surface of the fiber F, and the film P is drawn from the film reel 9 , and then use a set o...

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Abstract

The invention relates to a preparation method with primary ultrasonic cutting for automatically laying silk and presoaking yarn. It is especially applicable for laying materials of automatically laying silk machine, which belongs to technique field of complex material fiber laying and molding automatically. After educing from yarn frame, multiple fiber bundles are arranged in parallel. With back lining paper coating resin on both sides, they are processed by hot press rolling, gum film fusing and dipping, and cooling to molding. Take upper back lining paper and cover film on upper side of fiber. Cut single fiber bundle in presoaking zone by a set of ultrasonic cutting. Take below back lining paper and presoak and roll filmy single fiber bundle. The method can prepare individually molded presoak yarn of single fiber bundle. It has simple craft and can save materials and advance productive efficiency.

Description

a technical field [0001] The invention relates to a one-time ultrasonic cutting preparation method of automatic laying prepreg yarn, which is especially suitable for laying raw materials of automatic laying machine, and belongs to the technical field of automatic laying and forming of composite fiber. Two background technology [0002] The automatic laying prepreg yarn is that the resin is impregnated with a single continuous fiber bundle under strictly controlled conditions to form a combination of resin matrix and reinforcing material, and then the single continuous fiber bundle impregnated with resin is wound on the bobbin. When laying the yarn, the automatic yarn laying machine directly withdraws the yarn from the receiving bobbin and lays it on the surface of the mould. As the raw material of automatic laying technology, automatic laying prepreg yarn, its performance parameters will directly affect the automatic laying process and the quality and performance of composit...

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): D01D5/42B26D7/08
Inventor 张旭坡李勇肖军
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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