Multi-Surface Yarn Cleaner Anvil for Longer Cutting Life
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Solution Overview
Problem
Existing yarn cleaner cutting devices have a shorter service life due to increased wear of the cutting blades and anvils, necessitating frequent replacements to maintain consistent cutting performance.
Innovation Solution
The anvil features at least two adjustable stop surfaces that can be positioned on the anvil carrier, allowing selection of a stop surface to interact with the cutting edge, and is detachably mounted for easy alignment and replacement, ensuring parallel alignment with the cutting edge to distribute load evenly and prevent wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a chisel-like cutting device with a single stop surface is used, then the construction is simpler, but the service life is shorter due to increased wear
Solution Approach 1:
The anvil is divided into multiple stop surfaces (at least two) that can be selectively positioned. Each stop surface can be independently worn while others remain unused, effectively segmenting the wear across multiple contact points rather than concentrating it on a single surface.
Solution Approach 2:
The anvil is made adjustable and movable relative to the cutting knife, allowing dynamic repositioning of stop surfaces. This enables the operator to select different stop surfaces based on wear conditions, transforming a static single-surface design into a dynamic multi-surface system that adapts to wear over time.
2Reliability
If the cutting blade strikes the anvil with predetermined impact force, then the cutting action is effective, but wear increases necessitating regular replacement
Solution Approach 1:
The anvil is pre-configured with multiple stop surfaces before operation begins. This preliminary preparation ensures that when wear occurs on one surface, another ready-to-use surface is already available, preventing interruption of reliable cutting performance and reducing the need for replacements.
Solution Approach 2:
Worn stop surfaces are effectively 'discarded' by repositioning the anvil to bring a fresh, unworn stop surface into contact with the cutting edge. The worn surface remains on the anvil but is no longer used, allowing continuous operation with maintained cutting performance while minimizing material loss from the cutting blade.
3Stability of the object's composition
If the anvil is fixed in position, then the alignment is stable, but wear cannot be compensated without replacement
Solution Approach 1:
The anvil transitions from a fixed position to a dynamically adjustable position. It can be moved and repositioned relative to the cutting knife, allowing the operator to compensate for wear by selecting different stop surfaces while maintaining stable alignment during each cutting operation.
Solution Approach 2:
The anvil serves multiple functions: it provides a stable reference surface for cutting while simultaneously offering multiple selectable stop surfaces. This multi-functionality allows the same anvil component to maintain stable alignment across multiple operational phases without requiring replacement or complex realignment procedures.
Data Source
Figure 1
AI summary
The invention relates to a yarn cleaner for a workstation of a textile machine with a cutting device (1) for cleaning defects from a yarn and a cutting device (1) for a yarn cleaner that can be arranged at a workstation of a textile machine, with a cutting knife (4) having a cutting edge (20) adjustable between a rest position and a cutting position and an anvil (2) arranged on an anvil carrier (7) in an operating position in which a stop surface (3) of the anvil (2) interacts with the cutting edge (20) of the cutting knife (4) in the cutting position.In order to provide a yarn cleaner with a cutting device (1) and a cutting device (1) with a cutting knife (4) and an anvil (2) which is characterized by long service life, it is provided that the anvil (2) has at least two stop surfaces (3) which can be arranged on the anvil carrier (7) in the operating position and is adjustable on the anvil carrier (7) for the purpose of selecting the stop surface (3) which can be brought into operative contact with the cutting edge (20).