Blade Direction Control for Scratch-Free Cutting Transitions
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Solution Overview
Problem
Existing cutting devices face issues with scratches and inefficiencies when changing the direction of the blade during cutting operations, particularly when the blade direction at the end of one cutting line differs from the start of the next, leading to potential scratches and increased movement distances.
Innovation Solution
The cutting device incorporates a control system that adjusts the blade direction at the end of a cutting line to match the direction of the next line, using actuators and processors to control the cutter's position and direction, minimizing scratches and optimizing movement paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the blade direction is automatically changed depending on the direction of relative movement, then cutting adaptability is improved, but scratches occur when blade direction at cutting end position differs from next cutting start direction
Solution Approach 1:
The control device performs preliminary action by adjusting the blade direction at the cutting end position to match the cutting direction of the next cutting line before the cutter moves to the next position. This preliminary adjustment prevents scratches that would otherwise occur when the blade direction differs from the next cutting direction.
Solution Approach 2:
The control device uses feedback by detecting the cutting direction of each cutting line and using this information to adjust the blade direction at the cutting end position. The system continuously monitors and adjusts based on the detected cutting directions to maintain optimal blade orientation.
2Speed
If the cutter moves to the next cutting start position directly, then movement speed is improved, but unnecessary movement distance increases when blade directions do not align
Solution Approach 1:
The control device performs preliminary action by adjusting the blade direction at the cutting end position before the cutter moves to the next cutting line. This preliminary adjustment optimizes the movement path and reduces unnecessary movement distance, thereby saving time.
3Manufacturing precision
If the blade direction is adjusted at cutting end position, then cutting precision is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The control device performs multiple functions: it detects cutting directions, determines optimal blade directions, adjusts the blade direction at cutting end positions, and controls the cutter movement. By consolidating these functions into a single control device, the patent avoids increasing overall system complexity while achieving improved cutting precision.
Solution Approach 2:
The control device uses the cutting direction information from the previous cutting line to automatically adjust the blade direction for the next cutting line. This self-service approach reduces the need for additional complex control mechanisms by utilizing existing cutting direction data.
Data Source
AI summary
A cutting device includes: a cutter; a carriage that holds the cutter such that, when a relative position of the cutter with respect to a to-be-cut object is changed in a state in which a blade of the cutter bites into the held to-be-cut object, a direction of the blade is changed depending on a direction in which the relative position changes; an actuator that changes the relative position of the cutter held by the carriage with respect to the to-be-cut object in order to cut the to-be-cut object with the blade; and at least one processor that controls the actuator such that the blade of the cutter moves along a cutting line set on the to-be-cut object.