Liquid Ejection Wiping Mechanism for Collision-Free Timing
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Solution Overview
Problem
Existing liquid ejection apparatuses face inefficiencies in the timing and coordination of wiping operations with forming operations, leading to reduced throughput and potential collisions between the carriage and wiping mechanism.
Innovation Solution
The apparatus is designed to perform wiping operations in parallel with forming operations by moving the wiping mechanism from a standby position to a start position concurrently with the carriage's movement, allowing for simultaneous preparation and execution of wiping without collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wiping mechanism waits for the carriage to complete its forming operation before starting the wiping operation, then the wiping operation can be performed safely without collision, but the time required for the wiping operation increases and throughput is reduced
Solution Approach 1:
The wiping mechanism performs preliminary actions (moving from standby position to start position, and preparation operations) concurrently with the carriage's forming operation. This allows the wiping mechanism to be ready before the carriage arrives at the wiping position, enabling safe operation without waiting for the carriage to complete its entire cycle, thus maintaining both collision prevention and high throughput
Solution Approach 2:
The wiping mechanism maintains continuous useful action by performing its movement and preparation operations without idle waiting. Instead of remaining stationary during the carriage's forming operation, the wiping mechanism continuously moves to its start position and performs preparation operations, ensuring that the wiping operation can begin immediately when the carriage arrives, thereby maximizing productivity while ensuring safety
2Productivity
If the wiping mechanism moves to the start position immediately after the forming operation, then the wiping operation can start quickly, but there is a risk of collision with the carriage
Solution Approach 1:
The wiping mechanism performs preliminary movement to the start position and preparation operations during the time the carriage is performing its forming operation. This timing coordination ensures that the wiping mechanism is ready at the start position before the carriage arrives at the wiping position, enabling quick wiping operation start while avoiding collision through proper temporal sequencing
Solution Approach 2:
The control device monitors the positions and operational states of both the carriage and wiping mechanism, using this feedback information to coordinate their movements and operations. This ensures that the wiping mechanism moves to the start position and performs preparation operations at the optimal time when the carriage is occupied with forming operations, thereby achieving both speed and collision avoidance
3Productivity
If the wiping mechanism performs preparation operations at the standby position, then the overall wiping process time is reduced, but the complexity of coordinating multiple operations increases
Solution Approach 1:
The control device merges multiple operations (wiping mechanism movement from standby to start position, preparation operations, and carriage forming operation) into a coordinated sequence that occurs concurrently. By combining these operations in time and space, the system reduces the total wiping process time while managing complexity through integrated control that synchronizes all movements and actions
Data Source
AI summary
A carriage is movable to a formation position and a wiping position. A wiping mechanism is movable to a standby position, a start position, and an end position. The wiping mechanism is configured to perform the wiping operation by moving from the start position to the end position in a state in which the carriage is at the wiping position after moving from the standby position to the start position. The wiping mechanism performs a preparation operation of preparing the wiping operation at the standby position, and the wiping mechanism performs the preparation operation and movement from the standby position to the start position in parallel to the forming operation when performing the wiping operation following the forming operation.