Radially Opposed Rotary Blade Substrate Cutting Device
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Solution Overview
Problem
Existing substrate cutting devices face challenges in preventing substrate warp and increasing device size due to interference between rotary blades, leading to incomplete cuts, especially when cutting substrates of larger thickness.
Innovation Solution
A substrate cutting device with radially opposed cutters, each with rotary blades, and a phase adjustment unit that ensures each second rotary blade is positioned between two adjacent first rotary blades, preventing blade interference and allowing for precise control of blade phases to minimize warp and device size expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first cutter and second cutter are disposed spaced apart to prevent rotary blade interference, then blade interference is prevented, but the device size increases in the cutting direction
Solution Approach 1:
The patent transitions from a linear arrangement of cutters to a radial arrangement where cutters are positioned at different angular positions around the substrate. This dimensional change from one-dimensional linear spacing to two-dimensional radial positioning allows cutters to be closer in the cutting direction while preventing blade interference through angular separation.
Solution Approach 2:
The patent introduces a phase adjustment mechanism that allows dynamic adjustment of the angular positions of rotary blades on different cutters. This dynamic positioning enables optimization of blade spacing to prevent interference while maintaining compact device dimensions, adapting the cutter configuration to specific cutting requirements.
2Reliability
If the first cutter and second cutter are disposed spaced apart, then blade interference is prevented, but substrate warp increases due to pressing forces
Solution Approach 1:
By arranging cutters radially around the substrate rather than linearly along the cutting path, the patent distributes pressing forces more evenly across the substrate surface. This radial configuration reduces concentrated pressing forces that cause warp, while still preventing blade interference through angular separation.
Solution Approach 2:
The phase adjustment mechanism allows dynamic optimization of blade positioning to minimize substrate warp. By adjusting the angular phases of rotary blades, the system can distribute cutting and pressing forces more uniformly across the substrate, reducing warp while maintaining effective cutting.
3Length of moving object
If cutters are positioned closer together, then device size is reduced, but rotary blades may interfere with each other
Solution Approach 1:
The patent uses radial positioning of cutters around the substrate to achieve compact device dimensions while preventing blade interference. By positioning cutters at different angular positions rather than spacing them linearly, the system reduces the device footprint in the cutting direction while maintaining adequate blade separation through angular distribution.
Solution Approach 2:
The phase adjustment mechanism provides dynamic control over blade positioning, allowing the system to optimize angular spacing between blades on different cutters. This dynamic adjustment ensures interference-free operation while maintaining compact radial arrangement of cutters.
4Length of moving object
If cutters are positioned closer together, then device size is reduced, but substrate warp increases due to pressing forces
Solution Approach 1:
The radial arrangement of cutters around the substrate distributes pressing forces more uniformly across the workpiece surface. This two-dimensional radial distribution of forces reduces localized pressing effects that cause warp, enabling compact device dimensions without compromising substrate stability.
Solution Approach 2:
The phase adjustment mechanism enables dynamic optimization of blade positioning to minimize substrate warp. By adjusting angular phases, the system can distribute cutting forces more evenly across the substrate, reducing warp while maintaining compact radial cutter configuration.
Data Source
AI summary
A substrate cutting device includes: a first cutter including a plurality of first rotary blades; a second cutter including a plurality of second rotary blades; a first rotation drive unit for rotationally driving the first cutter; a second rotation drive unit for rotationally driving the second cutter; a cutter support unit; and a phase adjustment unit. The cutter support unit supports the first cutter and the second cutter such that the first and second cutters are radially opposed to each other so that rotation axes thereof are parallel to each other. The phase adjustment unit adjusts a phase of at least one of the first cutter and the second cutter such that each of the second rotary blades is located between two adjacent first rotary blades in an opposing area in which the first cutter and the second cutter are opposed to each other.