Continuous carbon fiber composite filament impregnation pretreatment device

Patent metadata

Field	Value
Publication number	US-12403631-B2
Application number	US-202419111329-A
Country	US
Kind code	B2
Filing date	Mar 25, 2024
Priority date	Oct 11, 2023
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

A continuous carbon fiber composite filament impregnation pretreatment device includes a conveying assembly. The conveying assembly is arranged on a pretreatment device frame. Adhesive layer spray assemblies are provided on left and right sides of the conveying assembly. A plurality of multi-angle cleaning assemblies is sequentially arranged at a front end of the pretreatment device frame. The device overcomes the defects in the impregnation of a continuous fiber reinforced composite filament by pre-treating the surface of the filament and then spraying a thermoplastic adhesive layer onto the fiber surface during the fiber spreading process before impregnation treatment.

First claim

What is claimed is:

1. A continuous carbon fiber composite filament impregnation pretreatment device, comprising a conveying roller assembly, wherein the conveying assembly is arranged on a pretreatment device frame; an adhesive layer spray assembly is arranged on each of a left side and a right side of the conveying assembly; a plurality of multi-angle cleaning assemblies are sequentially arranged at a front end of the pretreatment device frame;
wherein the quantity of the multi-angle cleaning assemblies is even, and rotation directions of every two adjacent multi-angle cleaning assemblies are opposite; each of the multi-angle cleaning assemblies comprises a traveling motor, an inner rotary cleaning ring, an outer traveling track ring, sector-shaped clamping frames, and traveling wheels; an outer circumferential surface of the outer traveling track ring is provided with an outer traveling track; the inner rotary cleaning ring is arranged in a cavity of the outer traveling track ring, and an outer circumferential surface of the inner rotary cleaning ring is uniformly provided with a plurality of sector-shaped clamping frames; the outer traveling track ring is fitted into cavities of the sector-shaped clamping frames; the traveling wheels are arranged at two top ends of the sector-shaped clamping frame respectively; each traveling wheel meshes with the outer traveling track; the traveling motor is fixed outside the sector-shaped clamping frames, and an output shaft of the traveling motor is connected to the traveling wheels; a plurality of cleaning brush fixing plates are uniformly arranged in a cavity of the inner rotary cleaning ring in sequence; and a cleaning brush is provided on each cleaning brush fixing plate.

2. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein the conveying assembly comprises a support plate and a plurality of conveying rollers fixed on the support plate; a sliding plate is provided at each of upper and lower ends of the support plate; and the sliding plate is connected to the pretreatment device frame in a sliding manner.

3. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein a lower conveying roller is connected to a sliding plate through an adjusting rod; and the adjusting rod is arranged in an adjusting groove of the sliding plate and locked by a bolt.

4. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein the adhesive layer spray assembly comprises spray guns arranged vertically symmetrically, and each spray gun is connected to a lifting cylinder; and the lifting cylinder is fixed on an adjusting frame, and each adjusting frame is fixed on the pretreatment device frame.

5. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 4 , wherein the spray gun is connected to a cylinder shaft of the lifting cylinder through a connecting plate; a limit rod is provided at each of two ends of the connecting plate; the limit rod is connected to the pretreatment device frame in a sliding manner; and a buffer pad adapted to a top of the limit rod is provided on the adjusting frame.

6. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein an inner circumferential surface of the outer traveling track ring is provided with an inner traveling track; the outer circumferential surface of the inner rotary cleaning ring is uniformly provided with a plurality of support rods; and an auxiliary gear adapted to the inner traveling track is provided on each support rod.

7. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein a bottom of the outer traveling track ring is fixed on the pretreatment device frame through a support seat.

8. The continuous carbon fiber composite filament impregnation pretreatment device according to claim 1 , wherein a temperature sensor is arranged at a discharge end of the pretreatment device frame.

Assignees

• Univ Nanjing Aeronautics & Astronautics

Inventors

• Fan Congze
• Chen Yiwei
• Shan Zhongde
• Zheng Jinghua
• Song Wenzhe
• Wang Jingxuan
• Xu Jiaxun

Classifications

• B29B15/14

  of filaments or wires · CPC title

• B29B13/00

  Conditioning or physical treatment of the material to be shaped (chemical aspects C08J3/00 {; heating, cooling or curing during shaping B29C35/00; thermal after-treatment B29C71/02}) · CPC title

• B08B9/023

  Cleaning the external surfaces {(B08B9/021 takes precedence)} · CPC title

• B05C9/10

  the auxiliary operation being performed before the application (B05C9/14 takes precedence) · CPC title

• B05B13/0436 Primary

  Installations or apparatus for applying liquid or other fluent material to elongated bodies, e.g. light poles, pipes (B05B13/0442, B05B13/0463 take precedence) · CPC title