Preparation method for rapidly connecting short oblique belt prepregs into continuous oblique belt prepreg

A quick connection and prepreg technology, applied in the direction of coating, etc., can solve the problems of different lengths of overlapping parts, uneven sides of prepreg, low production efficiency, etc., to achieve automatic mechanical production and continuous winding , The effect of improving production efficiency

Active Publication Date: 2018-05-04
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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  • Preparation method for rapidly connecting short oblique belt prepregs into continuous oblique belt prepreg
  • Preparation method for rapidly connecting short oblique belt prepregs into continuous oblique belt prepreg
  • Preparation method for rapidly connecting short oblique belt prepregs into continuous oblique belt prepreg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Put a fabric prepreg with a width of 800mm (such as figure 1 Shown) An automatic cutting device is used to cut diagonal prepregs 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: The inclined belt prepreg with a width of 20mm, an angle of 30°, and a length of 1600mm is automatically transported to the overlapping device through the conveyor. The ends of the two inclined belt prepregs to be overlapped are overlapped by 10mm and are short The two sides of the diagonal belt prepreg are automatically kept in alignment, such as image 3 Shown

[0029] Step 3: The overlapping 10mm part of the two short diagonal belt prepregs is quickly punched by an anti-sticking clamping device with a temperature of 60°C and a pressure of 50N, and the overlapping 10mm part of the short diagonal belt prepreg is pressed together, such as Figure 4 Shown.

[0030] Step 4: The overlapping 10mm part of the two short ...

Embodiment 2

[0034] This example is to use the automatic beveling equipment to cut the fabric prepreg with a width of 1000mm along the width direction into a diagonal belt with a width of 100mm, an angle of 90°, and a length of 1000mm according to the set tape width and angle. The immersion material is automatically transferred to the overlap device. The two short diagonal belt prepregs are overlapped end to end according to the overlap length of 100mm, and the two sides of the short diagonal belt prepreg are kept aligned, and then automatically transferred to On the connecting device, the overlapping parts of the two short diagonal belt prepregs are connected together by means of pressure, heating and sewing, so as to obtain a continuous diagonal belt prepreg with sufficient tensile strength. Finally, the continuous inclined belt prepreg is automatically transferred to the automatic winding device through the automatic belt conveyor system.

[0035] Step 1: Put a fabric prepreg with a width ...

Embodiment 3

[0042] Step 1: Put a fabric prepreg with a width of 900mm (such as figure 1 Shown) An automatic cutting device is used to cut diagonal prepregs 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: The inclined belt prepreg with 55mm, 60° angle and 1039mm length is automatically transported to the overlapping device through the conveying device, and the ends of the two inclined belt prepregs to be overlapped are overlapped by 55mm with a short diagonal The two sides with prepreg are automatically kept in alignment, such as image 3 Shown

[0044] Step 3: The overlapping 55mm part of the two short diagonal belt prepregs is quickly punched by the anti-sticking clamping device with a temperature of 90℃ and a pressure of 175N, and the overlapping 55mm part of the short diagonal belt prepreg is pressed and attached, such as Figure 4 Shown.

[0045] Step 4: The overlapping 55mm part of the two short diagonal 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 a fabric prepreg composite material tape winding molding technology and the field of mechanical automation, in particular to a preparation method for quickly connecting short diagonal belt prepregs into continuous diagonal belt prepregs. Background technique [0002] The diagonal belt prepreg is mainly used in the composite material tape winding process. The fiber fabric prepreg with a width of 800mm~1000mm is arranged along the width direction at a certain angle and a certain width of the short diagonal belt prepreg. The length is generally 800mm~2000mm. To produce a composite material part using the tape winding process generally requires hundreds or even thousands of meters of diagonal belt prepreg. Therefore, in order to realize the continuous winding process of the diagonal belt prepreg, the length should be 800mm~2000mm short before winding. The diagonal belt prepreg is connected to form a continuous diagonal belt prepreg wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B15/12
CPCB29B15/12
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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