Eccentric Cutter Wheel Jig for Servo-Free Glass Bend-Breaking
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Solution Overview
Problem
Existing bend-breaking devices for glass plates require a θ-axis servomotor and transmission members to change the rolling direction of the cutter wheel, hindering downsizing, energy efficiency, and processing speed.
Innovation Solution
A bend-breaking jig with an eccentrically positioned cutter wheel that rotates 360° around its axis, allowing the rolling direction to align with the jig's travel direction without a θ-axis servomotor or transmission members, and includes a pressing member to efficiently form and break the edge of the glass plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a θ-axis servomotor and transmission members are used to change the rolling direction of the cutter wheel, then the rolling direction can be adjusted, but the device size increases, energy consumption increases, and processing speed decreases
Solution Approach 1:
The patent removes the θ-axis servomotor and transmission members from the system entirely. Instead of using a complex motor-driven mechanism to adjust the cutter wheel's rolling direction, the invention uses a simpler structure where the cutter wheel's orientation is changed by the movement of the bend-breaking jig itself, eliminating unnecessary components and reducing device complexity
Solution Approach 2:
The bend-breaking jig's movement automatically serves dual purposes: both positioning the cutter wheel and adjusting its rolling direction. The jig's own motion through the glass plate causes the cutter wheel to rotate and align its rolling direction with the jig's travel direction, making the system self-adjusting without external actuators
2Adaptability or versatility
If a θ-axis servomotor and transmission members are used to change the rolling direction of the cutter wheel, then the rolling direction can be adjusted, but energy consumption increases
Solution Approach 1:
By removing the θ-axis servomotor and transmission members, the system eliminates the energy consumption associated with these components. The cutter wheel's rolling direction adjustment is achieved passively through the jig's movement rather than active motor-driven rotation, significantly reducing energy requirements
Solution Approach 2:
The system uses the kinetic energy already present in the jig's movement to automatically adjust the cutter wheel's orientation. The jig's motion through the glass plate causes the cutter wheel to rotate and align itself, converting the jig's translational motion into rotational alignment without requiring additional energy input from a motor
3Adaptability or versatility
If a θ-axis servomotor and transmission members are used to change the rolling direction of the cutter wheel, then the rolling direction can be adjusted, but processing speed decreases
Solution Approach 1:
Removing the θ-axis servomotor and transmission members eliminates the time required for motor acceleration, deceleration, and precise positioning. The cutter wheel's rolling direction changes instantaneously with the jig's movement, eliminating delays associated with motor response and transmission mechanics
Solution Approach 2:
The cutter wheel automatically adjusts its rolling direction in real-time as the jig moves, without waiting for motor commands or transmission cycles. This self-adjusting mechanism allows continuous processing at full jig travel speed, maximizing productivity by eliminating idle time during direction changes
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
Enables downsizing, energy savings, and increased processing efficiency by eliminating the need for a θ-axis servomotor and transmission members, allowing for rapid and accurate formation of end cut lines on glass plates.
Implementation Method 1
a bend-breaking cutter wheel that forms an end cut line (scribe) on an edge part of a glass plate
Implementation Method 2
The holder head is connected to the holder body via a bearing, and is rotatable in the circumferential direction (θ direction) with respect to the cutter holder center axis
Implementation Method 3
the pressing member presses the edge part of the glass plate downward to bend-break the edge part of the glass plate from a main body of the glass plate
Data Source
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AI summary
Provided is a bend-breaking jig capable of easily changing a rolling direction of a bend-breaking cutter wheel in bend-breaking processing to a direction in which a virtual end cut line of an edge part of a glass plate extends without using a θ-axis servomotor or a transmission member (a pulley, a belt, or the like). In first and second bend-breaking jigs 83a, 83b, a cutter wheel axis 03 extending in an up-down direction of a bend-breaking cutter wheel 92 is eccentric radially outward with respect to a cutter holder center axis 02 extending in an up-down direction of a bend-breaking cutter holder 91, and the bend-breaking cutter wheel 92 is rotatable by 360° in a direction around the cutter wheel axis 03 with respect to the bend-breaking cutter holder 91. When the first and second bend-breaking jigs 83a, 83b slightly travel on an upper surface of an edge part of a glass plate in a predetermined direction in parallel with the upper surface, the bend-breaking cutter wheel 92 abutting on the upper surface of the edge part of the glass plate rotates in the direction around the cutter wheel axis 03, and a rolling direction of the bend-breaking cutter wheel 92 becomes the same as a traveling direction of the bend-breaking jigs 83a, 83b.