Fiber coil mounting device used in automated composite material layup equipment

Patent metadata

Field	Value
Publication number	US-10632693-B2
Application number	US-201816197381-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Jul 24, 2018
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A fiber coil mounting device is used in automated composite material layup equipment. The fiber coil mounting device includes a fiber coil mounting shaft with axial hollow structure, a fiber stop plate disposed on two sides of the fiber coil mounting shaft, and an anti-slide fiber coil tightening mechanism. The anti-slide fiber coil tightening mechanism includes a piston assembly disposed inside the axial hollow structure, a spring piece disposed on the piston assembly, a driving unit controlling an axial slide of the piston assembly, and a tightening unit driven by an axial force produced by the spring piece during the axial slide of the piston assembly.

First claim

What is claimed is:

1. A fiber coil mounting device used in automated composite material layup equipment, the fiber coil mounting comprising: a fiber coil mounting shaft having an axial hollow structure, a fiber stop plate disposed on two sides of the fiber coil mounting shaft, and an anti-slide fiber coil tightening mechanism, wherein, the anti-slide fiber coil tightening mechanism comprises a piston assembly disposed inside the axial hollow structure, a spring piece disposed on the piston assembly, a driving unit controlling an axial slide of the piston assembly, and a tightening unit driven by an axial force produced by the spring piece during the axial slide of the piston assembly.

2. The fiber coil mounting device used in automated composite material layup equipment according to claim 1 , wherein the tightening unit comprises an elastic O-ring disposed on a wall of the fiber coil mounting shaft and a driving assembly penetrating through the wall of the fiber coil mounting shaft; the driving assembly is displaced via the axial force produced by the spring piece, and drives the O-ring to expand and contract.

3. The fiber coil mounting device used in automated composite material layup equipment according to claim 2 , wherein the driving assembly comprises an O-ring top block and a connecting block; the O-ring top block abuts against the O-ring and the connecting block; the connecting block abuts against the spring piece and the O-ring top block.

4. The fiber coil mounting device used in automated composite material layup equipment according to claim 2 , wherein a groove that is able to receive the O-ring is provided on the driving assembly and the surface of the fiber coil mounting shaft.

5. The fiber coil mounting device used in automated composite material layup equipment according to claim 1 , wherein the driving unit comprises a handle and a first connecting shaft disposed inside the axial hollow structure; one end of the first connecting shaft is connected to the piston assembly, and another end of the first connecting shaft penetrates through the axial hollow structure for connection with the handle.

6. The fiber coil mounting device used in automated composite material layup equipment according to claim 5 , wherein the first connecting shaft is provided with a positioning pin.

7. The fiber coil mounting device used in automated composite material layup equipment according to claim 1 , wherein the anti-slide fiber coil tightening mechanism includes two anti-slide fiber coil tightening mechanisms, and adjacent piston assemblies are connected via a second connecting shaft.

8. The fiber coil mounting device used in automated composite material layup equipment according to claim 1 , further comprising a disassembly mechanism for the fiber stop plate; wherein the disassembly mechanism comprises a flange plate fixed on a lateral end of the fiber coil mounting shaft and penetrated by the driving unit, a spring limit block fixed on the flange plate and penetrated by the driving unit, a press block slidably sleeved on the flange plate, and a compression spring abutting against the spring limit block and the press block; the compression spring presses the fiber stop plate on the flange plate by extruding the press block; the fiber stop plate is provided with a through hole for disassembly at a non-compression status.

9. The fiber coil mounting device used in automated composite material layup equipment according to claim 8 , wherein the through hole and an external contour of the flange plate form an engaging structure for limitation of an axial displacement of the fiber stop plate.

10. The fiber coil mounting device used in automated composite material layup equipment according to claim 1 , wherein the anti-slide fiber coil tightening mechanism comprises two or four groups of spring pieces and tightening units symmetrically arranged on the piston assembly.

Assignees

• Univ Zhejiang

Inventors

• Ke Zhenzheng
• Cheng Liang
• Zhu Weidong
• Qu Weiwei
• Ke Yinglin
• Jiang Junxia
• Li Jiangxiong

Classifications

• B65H2701/314

  Carbon fibres · CPC title

• B29C70/382 Primary

  Automated fiber placement [AFP] · CPC title

• B29C70/38 Primary

  Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns {(application heads for tyres B29D30/28)} · CPC title

• B65H2701/53

  Adaptations of cores or reels for special purposes · CPC title

• B29C70/384 Primary

  Fiber placement heads, e.g. component parts, details or accessories · CPC title