Suction Device with Corner Detection for Print Bed Stability
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Solution Overview
Problem
Printers face challenges in accurately detecting and preventing the floating of printing objects from the suction bed during the printing process, which can lead to interference with the printing device and result in incomplete or damaged prints.
Innovation Solution
A suction device with a suction hole member and air velocity sensors to detect the suction state of each suction hole, allowing for real-time monitoring and control of the suction force, including the ability to stop printing, notify the user of suction failure, and increase suction force when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single suction pump is used to vacuum the printing object on the bed, then the device complexity is reduced, but the measurement precision of suction state at different locations deteriorates
Solution Approach 1:
The patent divides the suction system into multiple independent suction holes (first, second, third, and fourth suction holes) distributed across the bed surface. Each suction hole is equipped with its own suction state detector, enabling localized measurement of suction states at different positions. This segmentation allows precise detection of suction failures at specific locations while maintaining overall system simplicity.
2Reliability
If suction holes are distributed across the entire bed surface, then the reliability of printing object fixation is improved, but the device complexity increases
Solution Approach 1:
The patent employs an asymmetric arrangement of suction holes and detectors at the four corners of the bed (first suction hole at front-left, second at front-right, third at rear-left, fourth at rear-right). This asymmetric corner-based configuration provides reliable fixation at critical positions without requiring uniform distribution across the entire bed surface, thereby maintaining reliability while controlling device complexity.
Solution Approach 2:
The patent combines multiple functions into the corner units: each corner contains both a suction hole for fixation and a suction state detector for monitoring. This merging of suction and detection functions at strategic corner positions achieves reliable fixation with minimal components, avoiding the complexity of dense uniform distribution.
3Productivity
If real-time suction state detection is implemented at all suction holes, then the productivity is maintained by preventing printing errors, but the device complexity and cost increase
Solution Approach 1:
The patent applies suction state detection selectively at the four corner positions where suction failures are most likely to occur and have the greatest impact on printing quality. This localized detection approach provides sufficient monitoring to prevent printing errors and maintain productivity without the excessive complexity and cost of comprehensive detection across the entire bed surface.
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
Effectively prevents printing object floating by ensuring consistent suction across the bed, preventing collisions and ensuring complete prints by detecting and responding to suction failures in real-time.
Implementation Method 1
the suction pump configured to suction an air through the plurality of suction holes of the suction hole member to suction a suction target to the suction hole member
Data Source
AI summary
A suction device includes a suction hole member including a plurality of suction holes, a suction pump connected to each of the plurality of suction holes, the suction pump configured to suction an air through the plurality of suction holes of the suction hole member to suction a suction target to the suction hole member, and a suction state detector configured to detect a suction state of at least one of the plurality of suction holes corresponding to an end of the suction target suctioned to the suction hole member.