Integrated Radial-Bearing Blade for Compact Paper Creasing
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Solution Overview
Problem
Existing rotary creasing devices for thick or rigid paper are bulky due to the larger diameter of the rotary blade, which complicates the device's structure and increases its size.
Innovation Solution
A paper creasing device with a rotary blade configured using a radial bearing composed of an inner and outer race, where the flange portion of the outer race serves as the blade, allowing the blade to move along a groove while sandwiching the paper, reducing the device's overall size and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotary blade is formed by covering an outer circumference of a bearing with a separate component, then the blade structure is complete and functional, but the rotary blade diameter becomes larger and the device size increases
Solution Approach 1:
The invention merges the bearing and blade into a single integrated component. The blade is formed as an integral part of the bearing structure, eliminating the need for a separate blade component. This is achieved by forming the blade from the bearing material itself or by directly attaching the blade to the bearing in a unified structure, thereby reducing the overall diameter and size of the rotary blade assembly while maintaining structural integrity and functionality.
2Reliability
If a separate component is used to form the blade on the bearing, then the blade can be formed, but the number of components increases and device complexity increases
Solution Approach 1:
The invention combines the blade and bearing into one unified component, reducing the total number of parts. Instead of using a separate blade component that needs to be attached to the bearing, the blade is formed as an integral part of the bearing structure. This simplification reduces assembly steps, potential failure points, and overall device complexity while ensuring reliable blade formation for the creasing operation.
3Reliability
If the rotary blade has a larger diameter due to double structure, then the creasing function is achieved, but production costs increase
Solution Approach 1:
The invention integrates the blade and bearing into a single component, which reduces material usage and manufacturing steps. By eliminating the need for a separate blade component and its associated attachment hardware, the overall material cost and manufacturing complexity are reduced. The integrated design allows for more efficient production processes while maintaining the essential creasing function through the properly configured bearing structure.
Data Source
AI summary
A device for creasing a paper includes a receiving member provided with a groove that extends in a fixed direction; a rotary blade that is configured to be movable along the groove; and a moving mechanism for moving the rotary blade along the groove. The rotary blade includes a radial bearing that is formed of a combination of an inner race and an outer race, the radial bearing including a flange portion that is monolithically formed with the outer race. The radial bearing is configured to move by the moving mechanism, while the radial bearing sandwiches the paper between the flange portion and the groove and keeps a condition in which the flange portion is inserted in the groove.