Rotational Pressing Anvil Cover Installation
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Solution Overview
Problem
The installation of anvil covers on anvil cylinders in die cutters is challenging due to limited access, physical barriers, and the need for significant force, which can lead to occupational hazards and inefficient wear distribution.
Innovation Solution
A sleeve is mounted on the die cylinder to reduce the gap between the die and anvil cylinders, allowing for rotational pressing to secure the anvil cover sections, eliminating the need for external force and enabling easier installation without altering the anvil or die cover designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hammering method is used to install anvil cover sections, then the anvil cover can be secured to the anvil cylinder, but significant force is required and occupational hazards arise from placing hands between cylinders
Solution Approach 1:
A die cover is introduced as an intermediary component between the anvil cover sections and the die cylinder. The die cover transmits pressing force from the die cylinder to the anvil cover sections, enabling secure attachment without direct human intervention in the hazard zone. The die cover acts as a mediator that converts rotational motion into securing force.
2Reliability
If manual hammering is used to install anvil cover sections, then the covering function is achieved, but the installation process is complex and time-consuming
Solution Approach 1:
The system enables self-service installation where the die cylinder's rotational motion automatically secures the anvil cover sections through the die cover. The anvil cover sections are pulled into place by the rotating die cover without requiring external hammering or complex installation tools, simplifying the entire installation process.
3Ease of manufacture
If anvil cover sections are installed without rotational pressing, then installation is simpler, but wear distribution becomes uneven reducing component life
Solution Approach 1:
The system uses dynamic rotational pressing instead of static installation methods. The die cylinder rotates to dynamically press the anvil cover sections into place, ensuring even contact and wear distribution across the entire surface. This dynamic approach maintains simplicity while extending component life through uniform wear.
4Ease of operation
If the gap between die and anvil cylinders is large, then access is easier, but rotational pressing cannot effectively secure the anvil cover sections
Solution Approach 1:
The die cover is extracted as a separate component that can be positioned on the die cylinder before the anvil cover installation. This allows the die cover to create the necessary pressing contact without requiring the die and anvil cylinders to be in direct close proximity, maintaining access ease while ensuring reliable securing through the intermediary pressing mechanism.
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
This method simplifies the installation process, reduces occupational hazards, and ensures even wear distribution by allowing the anvil cover sections to be securely attached without manual hammering, improving operational efficiency and safety.
Implementation Method 1
The first cylinder is commonly referred to as a die cylinder and the second cylinder is commonly referred to as an anvil cylinder, where the die cylinder and the anvil cylinder may be arranged such that the die cylinder is positioned above the anvil cylinder or below the anvil cylinder. A spatial gap may exist between a lowest contour line of the die cylinder and a highest contour line of the anvil cylinder. One or more motors through gears may drive the rotational motion of the die cylinder and anvil cylinder in such a way that a board may feed through the gap between the die cylinder and the anvil cylinder in response to the rotational motion and the frictional force on the surface of the anvil cylinder.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A die cutter includes an anvil cylinder, a die cylinder, and a sleeve that is mounted on the die cylinder for generating a pressing force on an anvil cover to force a locking component of the anvil cover into a locking component receptor of the anvil cylinder.