A prefabricated integrated mandrel for weaving / needling / stitching and its matching slide mechanism
By designing an integrated core mold for preform weaving/needling/stitching and its matching slide mechanism, the problem of multi-process composite forming in the forming of composite conical preforms was solved, achieving stable and reliable multi-process forming and meeting the integrated requirements of weaving, needle punching and stitching.
CN118223190BActive Publication Date: 2026-06-30NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information
- Application Number
- CN202410313534.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2026-06-30
- Estimated Expiration
- 2044-03-19
AI Technical Summary
Technical Problem
Existing technologies for forming composite conical preforms suffer from problems such as complex connections between different fabrics and difficulty in integrated weaving of multi-process composite preforms, leading to unstable forming.
Method used
A preform integrated weaving/needling/stitching mandrel and its matching slide mechanism were designed. Combining weaving, needle punching and stitching processes, the mandrel and slide mechanism with specific structure achieve stable and reliable forming of multiple processes.
Benefits of technology
It has achieved stable and reliable forming of multi-process composite conical preforms, meeting the integrated requirements of weaving, needle punching and sewing processes, and improving the stability and reliability of forming.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention discloses an integrated preform weaving / needling / stitching mandrel and its matching sliding mechanism. The mandrel includes a rear stitching area, needle-punched reinforcing ribs, a middle needle-punched area, and a front stitching area. The matching sliding mechanism includes the mandrel, a rotating device, a lifting device, and a translation device. Compared to existing technologies, this invention integrates multiple processes such as weaving, needle-punching, and stitching, while simultaneously achieving stable and reliable forming of multi-process composite conical preforms.
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