Method for manufacturing a sandwich panel and apparatus for manufacturing the sandwich panel

The method addresses the inefficiencies of existing sandwich panel production by using dry fiber layers and controlled resin application to form lightweight, stable panels with improved structural integrity for vehicle applications.

DE102023131779B4Active Publication Date: 2025-11-06KOEGEL TRAILER GMBH
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Patent Information

Application Number
DE102023131779
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-11-15
Publication Date
2025-11-06
Estimated Expiration
2043-11-15

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Abstract

Method for producing a sandwich panel (10) with a device (20) comprising at least one first pressing tool (21) and at least one second pressing tool (22) for forming the sandwich panel (10), wherein the method comprises the following steps: a) Arranging at least one first cover layer (11a) on the first press tool (21) and arranging at least one second cover layer (11b) on the second press tool (22); b) Providing a core package (12) comprising a core layer (13) with a honeycomb structure and two fiber layers (14a, 14b) arranged opposite the core layer (13); c) Covering the two fiber layers (14a, 14b) with at least one liquid plastic material (PM), in particular polyurethane; d) Arranging the core package (12) on the first cover layer (11a) such that at least the first (14a) of the two fiber layers (14a, 14b) is in contact with the first cover layer (11a); and e) Pressing the second press tool (22) against the first press tool (21), wherein the core package (12) is pressed together with the two cover layers (11a, 11b) to form the sandwich panel (10), characterized in that in step c) the core package (12) is held by at least one holding device (27), in particular a clamping frame, and after step c) the holding device (27) with the held core package (12) is moved to the first press tool (21), and in step d) the holding device (27) releases the core package (12) such that the core package (12) with the first fiber layer (14a) rests on the first cover layer (11a).
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Citation Information

Patent Citations

  • Method and apparatus for manufactoring a sandwich part and sandwich part

    US20160176153A1

  • Tonneau cover

    US20210129641A1

  • Laminated plate and method for manufacturing laminated plate

    US20220118732A1