# US 10,369,594 B2 · Fiber application head with a specific application roll > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,594 B2 - Document ID: US10369594B2 - Status: Granted - Kind: B2 - Application number: 15/562,955 - Filed: 2016-03-24 - Published: 2018-04-26 - Granted: 2019-08-06 - Earliest claimed: 2015-04-01 - Assignees: Coriolis Group - Applicants: Coriolis Group - Inventors: Olivier Leborgne - Web page: https://patentgrep.com/patent/US10369594B2 ## CPC - B05D 7/52: {Two layers} - B29C 35/0805: {using electromagnetic radiation} - B29C 70/384: {Fiber placement heads, e.g. component parts, details or accessories} - B29C 70/388: {Tape placement heads, e.g. component parts, details or accessories} - B29C 2035/0822: {using IR radiation} - B29C 2035/0838: {using laser} - B29C 2035/1658: {using gas} - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract The invention relates to a fiber application head for manufacturing composite material pars and to a corresponding manufacturing method, said head including: an application roll for applying a band formed of one or more fibers onto an application surface; a main guide system for guiding at least one fiber towards said application roll; a heating, system capable of emitting thermal radiation towards the band just before application by the application roll; a cooling system capable of cooling, the application roil from the outside, such as a gas flow; and a drive system capable of rotating the application roll when the roll is not in contact with the application surface. ## Claims ### Claim 1 A fiber application head for producing composite material parts, comprising: an application roll for the application of a band formed of one or more fibers onto an application surface; a main guide system for guiding at least one fiber towards said application roll; a heating system capable of emitting thermal radiation in the direction of the band, just before application by the application roll; a cooling system capable of cooling the application roll from the outside, wherein the head comprises a drive system capable of driving in rotation the application roll, when the roll is not in contact with the application surface. ### Claim 2 (depends on 1) The head according to claim 1, wherein the drive system comprises at least one motorized drive means able to be moved between an inactive position in which said drive means is remote from the application roll, and an active position in which said drive means is in contact with the application roll for positively driving the latter in rotation. ### Claim 3 (depends on 2) The head according to claim 2, wherein the drive system comprises at least one motorized drive roller with an axis of rotation parallel to the axis of rotation of the application roll, said roller being able to be moved between an inactive position in which the roller is remote from the cylindrical outer surface of the application roll, and an active position in which the roller is in contact with the cylindrical outer surface of the application roll for positively driving the latter in rotation. ### Claim 4 (depends on 1) The head according to claim 1, wherein the cooling system is capable of emitting a gas flow in the direction of the application roll. ### Claim 5 (depends on 4) The head according to claim 4, wherein the cooling system comprises a nozzle supplied with a gas flow, the nozzle partially covering the cylindrical outer surface of the roll. ### Claim 6 (depends on 3) The head according to claim 3, wherein the drive roller is positioned in the nozzle. ### Claim 7 (depends on 1) The head according to claim 1, wherein the heating system is of the laser type. ### Claim 8 (depends on 1) The head according to claim 1, wherein the heating system is of the infrared type, and comprises at least one first infrared lamp capable of heating the band between its outlet from the main guide system and the contact area between the application roll and the application surface. ### Claim 9 (depends on 1) The head according, to claim 1, wherein the application roll comprises a rigid central tube by which said roll is mounted to rotate on a support structure of the machine, and a cylinder made of a flexible material, elastically deformable, assembled coaxially on said central tube. ### Claim 10 (depends on 1) The head according to claim 1, wherein the head constitutes a fiber placement head. ### Claim 11 (depends on 1) A method of manufacturing a composite material part comprising the application of continuous fibers onto an application surface, wherein the application of fibers is carried out by means of a fiber application head according to claim 1, by relative movement of the application head in relation to the layup surface along layup trajectories, said application roll being rotationally driven by the drive system between two layup trajectories, when the roll is no longer in contact with the application surface. ### Claim 12 (depends on 11) The method according to claim 11, wherein the heating system is activated before each, layup trajectory, when the roll is not in contact with the application surface, in order to ensure sufficient heating from the beginning of the layup trajectory.