BRAIDING BOBBIN AND BRAIDING DEVICE

• US 20170137979A1
• Filed: 11/11/2016
• Published: 05/18/2017
• Est. Priority Date: 11/13/2015
• Status: Active Grant

• Current Assignee: Airbus Operations GmbH (Airbus SE)
• Original Assignee: Airbus Operations GmbH (Airbus SE)
• Inventors: AROLD, Bettina
• Granted Patent: US 10,563,329 B2
• Time in Patent Office: Days
• CPC Class Codes: D04C 1/02 made from particular materials
• CPC Class Codes: D04C 3/14 Spool carriers
• CPC Class Codes: D04C 3/18 for vertical spools
• CPC Class Codes: D04C 3/38 Driving-gear; Starting or stopping mechanisms

Abstract

The invention relates to a braiding bobbin for a braiding device. The braiding bobbin includes a cylindrical braiding spool, from which a previously wound, multilayer ribbon can be unwound, wherein a first layer of the ribbon consists of a pre-impregnated fiber film, and a second layer of the ribbon consists of a protective film. In addition, the braiding bobbin includes a bracket to which the braiding spool is frontally and rotatably fastened. Additionally provided for the braiding bobbin is a cylindrical additional spool for winding the protective film of the unwound ribbon and a deflection element. The deflection element is fastened to the bracket, wherein the deflection element is secured spaced apart in the radial direction R to the braiding spool and designed for deflecting the protective film from the braiding spool to the additional spool.

Claims

1. A braiding bobbin for a braiding device, comprising:

a cylindrical braiding spool, from which a previously wound, multilayer ribbon can be unwound, wherein a first layer of the ribbon comprises a pre-impregnated fiber film and a second layer of the ribbon comprises a protective film,

a bracket to which the braiding spool is frontally and rotatably fastened,

a cylindrical additional spool for winding the protective film of the unwound ribbon, and

a deflection element fastened to the bracket, wherein the deflection element is secured spaced apart in a radial direction to the braiding spool and is configured to deflect the protective film from the braiding spool to the additional spool.

2. The braiding bobbin according to claim 1, wherein the additional spool is coupled to the braiding spool in such a way that a rotation by the braiding spool around an accompanying braiding spool rotational axis causes the additional spool to rotate around an accompanying additional spool rotational axis.

3. The braiding bobbin according to claim 1, wherein the braiding spool and additional spool are arranged one behind the other in an axial direction of the braiding spool.

4. The braiding bobbin according to claim 1, wherein a first front side of the braiding spool is joined with a first front side of the additional spool.

5. The braiding bobbin according to claim 1, wherein the braiding spool and additional spool are aligned coaxially or with axial directions aligned parallel to each other.

6. The braiding bobbin according to claim 1, wherein the additional spool is coupled with the braiding spool by at least one driving means, so that rotating the braiding spool around the accompanying braiding spool rotational axis by means of the at least one driving means causes the additional spool to rotate around an accompanying additional spool rotational axis.

7. The braiding bobbin according to claim 1, wherein:

each front side of the braiding spool comprises a radially outwardly protruding braiding spool limiting disk, and/or

each front side of the additional spool comprises a radially outwardly protruding additional spool limiting disk.

8. The braiding bobbin according to claim 7, wherein the deflection element extends in an axial direction from a first deflection element end to a second deflection element end, wherein the first deflection element end is situated radially outside relative to the braiding spool, and the second deflection element end is situated radially outside relative to the additional spool.

9. The braiding bobbin according to claim 8, wherein the deflection element comprises a first guiding element protruding in the radial direction for guiding the protective film.

10. The braiding bobbin according to claim 9, wherein the deflection element comprises a second guiding element protruding in the radial direction for guiding the protective film.

11. The braiding bobbin according to claim 9, wherein

the first guiding element is situated in the axial direction centrally relative to the braiding spool, and/or

the second guiding element is situated in the axial direction centrally relative to the additional spool.

12. A braiding device for braiding a mandrel with a pre-impregnated fiber film, comprising:

a hollow cylindrical module carrier,

a plurality of impellers situated one behind the other on the module carrier in the circumferential direction of the module carrier, wherein each impeller is designed to hold a braiding bobbin and transfer the braiding bobbin to an adjacent impeller, and

a plurality of braiding bobbins, which can be held by the impellers and transferred from impeller to impeller in the circumferential direction of the module carrier, each of the braiding bobbins comprising;

a cylindrical braiding spool, from which a previously wound, multilayer ribbon can be unwound, wherein a first layer of the ribbon comprises a pre-impregnated fiber film and a second layer of the ribbon comprises a protective film

bracket to which the braiding spool is frontally and rotatably fastened,

a cylindrical additional spool for winding the protective film of the unwound ribbon, and

a deflection element fastened to the bracket, wherein the deflection element is secured spaced apart in a radial direction to the braiding spool and is configured to deflect the protective film from the braiding spool to the additional spool.

13. The braiding device according to claim 12, wherein each impeller comprises a motorized impeller rotatably mounted to the module carrier, with a jacket-side area for receiving, holding and dispensing one of the braiding bobbins.