Cutter Guide Mechanism for Automated Composite Placement
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Solution Overview
Problem
Existing automated fiber placement machines face challenges with inaccurate tow cutting due to the lack of a guide mechanism in their cutter structures, leading to high deviation and reduced precision.
Innovation Solution
A cutter device with a robust and compact guide mechanism, comprising a cutter component, drive mechanism, and compensating mechanism, which includes a guide groove, cutter stop, and cutting board, allowing for accurate movement and precise cutting of fiber tows, and can be easily expanded or reduced based on the number of tows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a two-way cutter blade structure is used without a guide mechanism, then the cutter can be simple in structure, but the cutting precision becomes poor with high deviation
Solution Approach 1:
A guide mechanism is introduced as an intermediary component between the cutter and the workpiece. The guide groove and guide plate constrain the cutter's movement path, ensuring precise positioning during cutting operations while maintaining relative simplicity of the overall system
Solution Approach 2:
The cutting system is divided into independent functional modules: the cutter component, the guide mechanism, and the drive mechanism. This segmentation allows each component to be optimized independently - the cutter remains simple while the guide mechanism provides the necessary precision
2Ease of operation
If the cutter component is allowed to move freely without constraints, then the ease of operation is improved, but the reliability decreases due to potential sliding out of position
Solution Approach 1:
The cutter component is designed with dynamic constraints - the guide groove allows movement in the desired cutting direction while the cutter stop prevents movement beyond safe limits. This dynamic constraint system maintains reliability while preserving operational flexibility
Solution Approach 2:
The cutter stop acts as a pre-positioned safety constraint that prevents the cutter from sliding out of position before such an event can occur. This beforehand protection ensures reliability without interfering with normal cutting operations
3Productivity
If multiple tows need to be cut simultaneously, then the productivity increases, but the device complexity increases requiring multiple cutter components
Solution Approach 1:
The guide mechanism is designed with universal applicability - the guide groove and cutter stop configuration can accommodate multiple cutter components cutting different numbers of tows. This multi-functional design allows the same basic structure to handle various production requirements without requiring completely different configurations
Data Source
AI summary
This invention relates to a cutter device for automated composite material placement equipment, including cutter component, drive mechanism that drives the cutter component to slide, and guide mechanism that provides slide room for the cutter component, the said guide mechanism comprises: cutter stop, base, cover plate arranged on the base, and cutting board arranged between the base and the cover plate; guide groove for accommodating cutter component slide is provided at the said base's contact side with the cutting board; the said cutter stop is arranged at the outer side of the guide groove to limit the cutter component from sliding out; the said cutting board has a protruding part relative to the base and the cover plate, a first tow guide hole is provided on the said protruding part; a second tow guide hole coaxial with the first guide hole is provided at the said cutter stop, a cutter avoidance groove is further provided at the said cutter stop's side close to the cutting board, and the second tow guide hole goes through the said cutter avoidance groove. The cutter device comes in robust and compact construction to guide the cutter to realize accurate movement.