Prepreg Automatic Layering Device Cutting Mechanism
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Solution Overview
Problem
Existing prepreg automatic layering devices require manual operation to cut prepreg sheets into narrower widths, making the process complicated and time-consuming due to the limitations of rotary die cutters that only cut in the width direction.
Innovation Solution
A prepreg automatic layering device with a cutting mechanism that includes a cutter portion for width-direction cuts and a control device to automate the separation of prepreg cut portions from unnecessary portions, along with a base plate, pressing rollers, and an ultrasonic cutter for precise cutting, ensuring the prepreg sheet is cut accurately without delamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotary die cutter is used to cut the prepreg sheet, then the delamination sheet is not cut, but the prepreg sheet cannot be cut in the feed direction to form narrower widths
Solution Approach 1:
The cutting function is segmented into two independent mechanisms: a rotary die cutter for width-direction cutting that preserves delamination sheet integrity, and a linear cutter for feed-direction cutting that creates narrower prepreg cut portions. Each cutter handles specific cutting directions, allowing versatile shaping without compromising delamination sheet integrity.
Solution Approach 2:
The linear cutter acts as an intermediary mechanism that enables feed-direction cutting without affecting the delamination sheet. By positioning the linear cutter to cut only the prepreg sheet and using it as a mediator between the rotary die cutter and the final product, the system achieves versatile cutting capabilities while maintaining delamination sheet integrity.
2Adaptability or versatility
If manual cutting is used to create narrower prepreg cut portions, then cutting flexibility is achieved, but the process becomes complicated and time-consuming
Solution Approach 1:
The system performs self-service cutting through automated mechanisms. The linear cutter automatically cuts the prepreg sheet in the feed direction to create narrower widths, and the rotary die cutter automatically cuts in the width direction. This eliminates the need for manual cutting operations, providing both cutting flexibility and high productivity through automation.
Solution Approach 2:
Manual mechanical cutting operations are replaced with automated cutting mechanisms. The linear cutter and rotary die cutter work together as an automated system that provides cutting flexibility previously requiring manual intervention, while significantly increasing layering speed and productivity through automation.
3Manufacturing precision
If the prepreg sheet is cut in the feed direction to form narrower widths, then customized prepreg cut portions are achieved, but delamination may occur
Solution Approach 1:
The linear cutter performs preliminary cutting in the feed direction to create narrower prepreg cut portions before the rotary die cutter performs width-direction cutting. By establishing the correct narrow width first, subsequent width-direction cutting can be performed with proper positioning, ensuring both cutting precision and bonding integrity without delamination.
Solution Approach 2:
The cutting system operates dynamically with coordinated motion between the linear cutter and rotary die cutter. The linear cutter establishes the narrow width, and then the rotary die cutter dynamically positions and cuts in the width direction. This dynamic coordination ensures precise cutting while maintaining bonding integrity and preventing delamination through proper sequencing and positioning.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy and rapid cutting of prepreg cut portions narrower than the prepreg sheet width, improving position accuracy and stability by automating the cutting process and preventing delamination, thus enhancing operational efficiency.
Implementation Method 1
an ultrasonic cutter for precise cutting
Implementation Method 2
pressing rollers, and an ultrasonic cutter for precise cutting, ensuring the prepreg sheet is cut accurately without delamination
Data Source
AI summary
A prepreg automatic layering device includes a rotary die-cutter, a cutting mechanism and a control device. The rotary die-cutter, by cutting a prepreg sheet only in the width direction, cuts out a prepreg cut-out section in which a prepreg cut section and an unnecessary portion are integrated. The cutting mechanism is disposed before a layering stage, and separates a portion corresponding to the prepreg cut section and a portion corresponding to the unnecessary portion by cutting the prepreg sheet in the direction in which the prepreg sheet is conveyed. The control device controls the cutting mechanism.