Die Holder Assembly with Pre-located Voids for Rotary Cutting
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Solution Overview
Problem
Conventional methods for attaching and removing rotary cutting dies from cutting machines are time-consuming and costly, requiring complex fastening systems and additional components like rubber for surface consistency, while scrap removal mechanisms add to the operational complexity.
Innovation Solution
A die holder with pre-located voids for quick insertion and secure mounting of cutting dies, eliminating the need for rubber and specialized mounting features, and a removable scrap control apparatus that doesn't require permanent attachments to the cylinder, allowing for versatile die configurations and simplified setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fastening screws are used to secure dies to the die cylinder, then the die attachment is secure, but the attachment and removal process becomes time-consuming
Solution Approach 1:
The die holder is pre-formed with integrated mounting features and pre-located voids that match the die dimensions, allowing the die to be inserted and secured in a single operation without requiring multiple fastening screws or complex alignment procedures during setup
Solution Approach 2:
The die holder combines multiple functions into a single component: it provides the mounting interface to the die cylinder, contains the die, provides surface height consistency through its base, and incorporates scrap removal features, eliminating the need for separate fastening screws and rubber layers
2Reliability
If multiple fastening screws are used to secure each die, then the die is securely attached, but the manufacturing cost and complexity increase
Solution Approach 1:
The die holder integrates the mounting function directly into its structure, eliminating the need for separate fastening screws. The holder's base provides both the mounting interface and the surface height consistency, while the integrated voids provide both positioning and scrap removal functionality
Solution Approach 2:
The invention extracts the fastening function from the die assembly and relocates it to the die holder, which is a separate component that can be pre-manufactured with the mounting features, simplifying the die manufacturing process
3Shape
If rubber layers are added between mounted dies to provide consistent surface height, then the surface height is uniform, but the setup process becomes more complex and time-consuming
Solution Approach 1:
The die holder's base is designed to extend circumferentially around the cylinder, bridging the gaps between dies and providing a consistent surface height as an integrated feature, eliminating the need for separate rubber layers or bridging blocks
4Productivity
If permanent holes or slots are built into the cylinder for scrap removal, then scrap can be effectively removed, but the cylinder complexity and setup time increase
Solution Approach 1:
The scrap removal mechanism is made removable and adjustable rather than permanent, allowing it to be positioned as needed and removed when not required, reducing the complexity of the cylinder while maintaining effective scrap removal capability
Solution Approach 2:
The scrap removal function is separated from the cylinder structure and integrated into the die holder assembly, allowing it to be positioned independently and removed without modifying the cylinder
Data Source
AI summary
The present invention provides a die holder with one or more pre-located recessed areas or voids into which cutting dies can be quickly and easily inserted and secured. The die holder mounts quickly to the cylinder, and can be quickly removed for alternative operations. The die holder can be made according to the operator needs for different types, sizes and positions of dies. Unused voids can be filled with ‘blank’ blocks to achieve a consistent or uniform surface height for the full 360 degree area of the die cylinder. The present invention further provides a removable scrap control apparatus that is not attached permanently to the die cylinder on which it is used, which permits the use of a multiple blade die or a plurality of single blade dies on the same die cylinder without requiring permanent holes, slots or other means to accommodate the scrap control apparatus on the die cylinder or anvil cylinder.