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A preparation method for quick connection of short oblique tape prepregs into continuous oblique tape prepregs

A quick connection and prepreg technology, applied in the direction of coating, etc., can solve the problems of low production efficiency, different lengths of overlapping parts, uneven sides of prepregs, etc., so as to improve production efficiency and realize mechanical automation production , to achieve the effect of continuous winding

Active Publication Date: 2019-09-17
SHANGHAI COMPOSITES SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of different lengths of overlapping parts, uneven sides of prepregs, and low production efficiency in the continuation method of hand-stitching; to overcome the problems that the overlapping position is extremely easy to come off during the winding process in the continuation method of heating and pressing To solve the problem, the present invention provides a preparation method for quickly connecting short oblique tape prepregs into continuous oblique tape prepregs, through automatic oblique cutting of tapes, automatic alignment of hot charging and automatic sewing of continuous tapes, and automatic neat collection The method of rolling into a coil realizes the fast and automatic lap stitching of short diagonal prepreg

Method used

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  • A preparation method for quick connection of short oblique tape prepregs into continuous oblique tape prepregs
  • A preparation method for quick connection of short oblique tape prepregs into continuous oblique tape prepregs
  • A preparation method for quick connection of short oblique tape prepregs into continuous oblique tape prepregs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Fabric prepregs with a width of 800mm (such as figure 1 As shown) Use an automatic cutting device to cut out a diagonal belt prepreg with a width of 20mm, an angle of 30°, and a length of 1600mm along the width direction, such as figure 2 shown;

[0028] Step 2: Automatically convey the oblique belt prepreg with a width of 20mm, an angle of 30°, and a length of 1600mm to the lapping device through the conveying device, and overlap the ends of the two oblique belt prepregs to be overlapped by 10mm, and the short The two sides of the oblique belt prepreg are automatically kept in alignment, such as image 3 shown;

[0029] Step 3: The 10mm overlapping part of the two short oblique tape prepregs is quickly stamped by an anti-adhesive clamping device with a temperature of 60°C and a pressure of 50N, and the overlapping 10mm parts of the short oblique tape prepregs are pressed together, as Figure 4 shown.

[0030] Step 4: After the overlapping 10mm part of the ...

Embodiment 2

[0034] In this example, the fabric prepreg with a width of 1000mm is cut along the width direction into diagonal belt prepregs with a width of 100mm, an angle of 90° and a length of 1000mm by using the automatic bevel cutting equipment according to the set tape width and angle. The dipping material is automatically transferred to the lapping device to overlap the two short oblique tape prepregs head to tail according to the lap length of 100mm, and the two sides of the short oblique tape prepreg are kept in alignment, and then automatically transferred to the On the connecting device, the overlapping parts of two short diagonal tape prepregs are connected together by means of pressure, heating and sewing, so as to obtain a continuous diagonal tape prepreg with sufficient tensile strength. Finally, the continuous oblique belt prepreg is automatically delivered to the automatic winding device through the automatic belt transmission system.

[0035] Step 1: Fabric prepregs with a...

Embodiment 3

[0042] Step 1: fabric prepreg with a width of 900mm (such as figure 1 (shown) Use an automatic cutting device to cut out a diagonal belt prepreg with a width of 55mm, an angle of 60°, and a length of 1039mm along the width direction, such as figure 2 shown;

[0043] Step 2: Automatically transport the 55mm oblique belt prepreg with an angle of 60° and a length of 1039mm to the lapping device through the conveying device, and overlap the ends of the two oblique belt prepregs to be overlapped by 55mm, and the short The two sides with prepreg are automatically kept in alignment, e.g. image 3 shown;

[0044] Step 3: The overlapping 55mm parts of the two short oblique tape prepregs are quickly stamped by an anti-adhesive clamping device with a temperature of 90°C and a pressure of 175N, and the overlapping 55mm parts of the short oblique tape prepregs are pressed together, such as Figure 4 shown.

[0045] Step 4: After the overlapping 55mm part of the two short oblique prepr...

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Abstract

The invention provides a preparation method for rapidly connecting short oblique belt prepregs into a continuous oblique belt prepreg. The preparation method comprises the steps that a whole fabric pregreg roll with the breadth of 800 mm-1000 mm is cut into short oblique belt prepregs in the breadth direction through an automatic oblique cutting device according to a set woven belt width and a present angle, the short oblique belt prepregs are automatically conveyed onto an overlap joint device to enable every two short oblique belt prepregs to be overlapped end to end, and the two side edgesof the short oblique belt prepregs are kept aligned; then the end-to-end overlapped portions of every two short oblique belt prepregs are connected into a whole through pressurizing, heating and sewing; and finally, the continuous oblique belt prepreg is automatically conveyed to an automatic winding device through an automatic belt conveying system, and continuous oblique belt prepreg rolls eachwith the length of about hundreds of meters are collected. Through the preparation method, continuous winding of the oblique belt prepregs can be achieved. By adoption of the continuous oblique belt prepreg prepared through the method, mechanical and automatic production of oblique belt prepreg winding type composite products is achieved, and the production efficiency is improved by over one time.

Description

technical field [0001] The invention relates to fabric prepreg composite material cloth tape winding molding technology and the field of mechanical automation, in particular to a preparation method for quickly connecting short diagonal tape prepregs into continuous diagonal tape prepregs. Background technique [0002] The oblique belt prepreg is mainly used in the composite material cloth tape winding process. The fiber fabric prepreg with a width of 800mm ~ 1000mm is made along the width direction according to a certain angle and a certain width. The length of the short oblique belt prepreg is generally 800mm~2000mm. To produce a composite material part by tape winding process generally requires hundreds or even thousands of meters of diagonal tape prepreg. Therefore, in order to realize the continuous winding process of diagonal tape prepreg, it is necessary to shorten The diagonal tape prepregs are joined into a continuous diagonal tape prepreg with sufficient tensile st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B15/12
Inventor 胡艳志郭金海詹光亮唐妹红肖海刚赵鑫褚凤洋姚盼李来福
Owner SHANGHAI COMPOSITES SCI & TECH CO LTD
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