Glass Bend-Breaking Jig With Eccentric Cutter Wheel Alignment
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Solution Overview
Problem
Existing glass plate processing systems face inefficiencies in bend-breaking, including shallow end cutting lines, incomplete breakage leading to raised edges, and the need for a θ-axis servomotor and transmission members, which increase size, energy consumption, and costs.
Innovation Solution
A bend-breaking device that forms an end cutting line on the glass plate using a cutter wheel with an eccentric axis, allowing for direct alignment of the cutter wheel's rolling direction with the jig's travel direction without a θ-axis servomotor, ensuring deep cuts and complete edge breakage without burrs, and includes lifting mechanisms for efficient processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a θ-axis servomotor and transmission members are used to rotate the cutter wheel, then the rolling direction can be aligned with the jig's travel direction, but the device size, energy consumption, and costs increase
Solution Approach 1:
The patent removes the θ-axis servomotor and transmission members from the system. Instead of actively rotating the cutter wheel holder, the invention uses the natural rolling motion of the cutter wheel combined with the linear travel of the jig to achieve the desired alignment, thereby extracting the complex rotational actuation system while maintaining functional precision
Solution Approach 2:
The cutter wheel's rolling motion on the glass plate surface automatically provides the necessary rotational component. The linear travel of the jig combined with the cutter wheel's rolling creates the effective cutting action without requiring separate rotational actuation, allowing the system to self-align through its basic operational motion
2Productivity
If the end cutting line is formed at a shallow depth, then the processing is faster, but the bend-breaking is incomplete and raised edges occur
Solution Approach 1:
The patent optimizes the cutting depth parameter to achieve complete bend-breaking. By adjusting the pressing force and cutter wheel penetration depth to appropriate levels, the system ensures the end cutting line reaches sufficient depth to enable complete edge breakage without forming raised edges, while maintaining efficient processing speed through optimized parameter combinations
3Loss of time
If the circumferential edge area is not completely bend-broken, then the processing time is reduced, but raised edges are produced
Solution Approach 1:
The patent employs pneumatic pressing members to apply controlled force for bend-breaking the glass plate edge. The pneumatic system provides sufficient and uniformly distributed pressing force to ensure complete breakage of the circumferential edge area along the end cutting line, eliminating raised edges while maintaining efficient processing through rapid pneumatic actuation
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
The device achieves efficient, complete bend-breaking of the glass plate edges with reduced size, energy, and cost, preventing burrs and shortening processing time by aligning the cutter wheel direction with the jig's travel direction, ensuring smooth and reliable edge breakage.
Implementation Method 1
a bend-breaking cutter wheel which has a cutter wheel axis line extending in an up-down direction and eccentric outward in a radial direction with respect to a cutter holder center axis line
Implementation Method 2
forms an end cutting line... by using the bend-breaking cutter wheel
Implementation Method 3
a first lifting/lowering mechanism that moves in an up-down direction, and a pressing member lifting/lowering mechanism that moves in an up-down direction
Implementation Method 4
pressing member that presses the circumferential edge area of the glass plate... ensuring deep cuts and complete edge breakage without burrs
Data Source
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AI summary
There is provided a bend-breaking device capable of transmitting bend-breaking of a glass plate from an outline cutting-out line toward an end cutting line in bend-breaking processing and capable of smoothly and reliably bend-breaking an entire circumferential edge area outside of the outline cutting-out line of the glass plate. The bend-breaking device moves a bend-breaking jig from an end cutting line formation start point 135a on an outer circumferential edge of an outer circumferential area 56b of a glass plate 11 or in the vicinity thereof toward an end cutting line formation end point 135c in the vicinity outside of an outline cutting-out line K1, and forms, at an end cutting line formation position in the circumferential edge area 56b of the glass plate 11, an end cutting line K2 extending from the end cutting line formation start point 135a toward the end cutting line formation end point 135c. The end cutting line formation start point 135a is a point on the outer circumferential edge of the outer circumferential area 56b of the glass plate 11, a position at a very short distance inward from the outer circumferential edge of the outer circumferential area 56b, or a position at a very short distance outward from the outer circumferential edge of the outer circumferential area 56b, and the end cutting line formation end point 135c is a position at a very short distance outward from the outline cutting-out line K1.