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A device for preparing continuous fiber reinforced thermoplastic prepreg tape

A technology for reinforcing thermoplastic and continuous fibers, applied in the field of composite material prepreg tape preparation equipment, can solve the problems of high heat consumption and poor impregnation effect, and achieve the effects of simplified process, stable size and uniform fiber distribution

Active Publication Date: 2018-07-17
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of high heat consumption of the traditional melt impregnation method and poor impregnation effect of the continuous film laying method, simplify the process steps, realize one-step molding of melt spinning coating and prepreg preparation, reduce processing heat consumption and production cost

Method used

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  • A device for preparing continuous fiber reinforced thermoplastic prepreg tape
  • A device for preparing continuous fiber reinforced thermoplastic prepreg tape
  • A device for preparing continuous fiber reinforced thermoplastic prepreg tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A device for preparing continuous fiber-reinforced thermoplastic prepreg tapes such as figure 1 As shown, it includes a creel 1, a guide roller 2, a fiber opening device 3, a preheating oven 4, a melt spinning coating device, a hot pressing roller group 12, a cold pressing roller 13 and a winding roller 14 arranged in sequence, and the melting The spinning coating device and the hot pressing roller group 12 are heated by the heating device 5 at the same time; the fiber opening method of the fiber opening device 3 is air fiber opening, and the heating method of the heating device 5 is resistance wire heating;

[0032] The melt spinning coating device comprises a screw extruder 6, a numerical control slide table 7, a spinning assembly 8, a spinneret 9, a bonding roller 11 and a collecting device 10, a screw extruder 6, a spinning assembly 8 and a spinning assembly The plates 9 are sequentially connected, the numerically controlled slide table 7 is connected with the spinn...

Embodiment 2

[0035] A device for preparing continuous fiber-reinforced thermoplastic prepreg tapes, comprising sequentially arranged creel 1, guide roller 2, fiber opening device 3, preheating oven 4, melt spinning coating device, hot pressing roller group 12, cooling The pressing roller 13 and the winding roller 14, the melt spinning coating device and the hot pressing roller group 12 are heated by the heating device 5 at the same time; Infrared heating;

[0036] The melt spinning coating device comprises a screw extruder 6, a numerical control slide table 7, a spinning assembly 8, a spinneret 9, a bonding roller 11 and a collecting device 10, a screw extruder 6, a spinning assembly 8 and a spinning assembly The plates 9 are sequentially connected, the numerically controlled slide table 7 is connected with the spinning assembly 8, and is used to adjust the distance between the spinneret and the unidirectional continuous glass fiber belt (that is, the unidirectional continuous reinforced f...

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Abstract

The invention relates to a device for manufacturing a continuous fiber reinforced thermoplastic prepreg tape. The device comprises a creel, a yarn guide roll, a fiber splitting device, a pre-heating oven, a melting, spinning and coating device, a heating device, a hot compression roll set, cold compression rolls and a wind-up roll which are sequentially arranged; the melting, spinning and coating device and the hot compression roll set are simultaneously heated by the heating device; the melting, spinning and coating device comprises a screw extruder, a numerical-control sliding table, a spinning assembly, a spinneret plate, bonding rolls and a collecting device; the screw extruder, the bonding rolls and the collecting device are arranged from top to bottom; and the spinneret plate and the bonding rolls are separately positioned in rear and front of a moving direction of a one-way continuous reinforced fiber band; the spinneret plate is parallel to the one-way continuous reinforced fiber band; and the collecting device is positioned below the spinneret plate. The device realizes one-step forming of melting, spinning and coating and prepreg preparing, so that process steps are simplified and efficiency is improved; and the manufactured continuous fiber reinforced thermoplastic prepreg tape is uniform in distribution, is stable in dimension and is low in porosity.

Description

technical field [0001] The invention belongs to the field of preparation equipment for composite material prepreg tapes, and relates to a device for preparing continuous fiber reinforced thermoplastic prepreg tapes. Background technique [0002] Continuous fiber-reinforced thermoplastic composites have the advantages of high specific strength, high specific stiffness, good impact resistance, and strong structural designability. They gradually replace metals as lightweight structural materials and are widely used in aerospace, automotive and other fields. There are many preparation procedures for prepregs with continuous fibers as reinforcement materials, and the use of continuous production equipment is the key to improving the production efficiency of prepregs. [0003] At present, the preparation equipment for continuous fiber-reinforced thermoplastic prepreg tape is mainly for the melt impregnation method and the film laying method, and there are few preparation equipment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/50B29C70/54B29C70/56
CPCB29C70/506B29C70/54B29C70/56
Inventor 王彪胡郁菲张坚张雪娜忻伟陈彦坤陆茜郑迎迎
Owner DONGHUA UNIV
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