Liquid Material Line Application With Speed-Based Discharge Control
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Solution Overview
Problem
Programming for controlling moving speed and discharge amount in liquid material application devices is labor-intensive and time-consuming, requiring trial and error to achieve uniform line widths, especially for manufacturing various small quantities of products.
Innovation Solution
A liquid material application device with a control unit that automatically adjusts discharge amount based on moving speed information, using a conversion unit with a table or formula to synchronize relative movement and discharge control, reducing the need for manual programming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual programming is used to control moving speed and discharge amount, then flexibility in controlling application parameters is improved, but programming work becomes labor-intensive and time-consuming
Solution Approach 1:
The system automatically generates discharge amount control commands by itself based on detected relative moving speed variations, without requiring external programming intervention. The control unit monitors the robot's movement speed and autonomously adjusts discharge parameters to compensate for speed changes, making the system self-regulating and eliminating manual programming efforts.
Solution Approach 2:
The system implements a feedback mechanism where the control unit continuously monitors the relative moving speed between the discharge device and workpiece, and uses this information to automatically adjust discharge amount commands. This closed-loop control ensures that discharge parameters are dynamically adapted to actual movement conditions without requiring pre-programming.
2Manufacturing precision
If discharge amount is manually adjusted at corner positions, then line width uniformity is improved, but programming complexity increases
Solution Approach 1:
The control unit automatically detects when the robot is approaching corner positions based on movement speed patterns and autonomously generates appropriate discharge amount adjustments, eliminating the need for manual programming of corner-specific parameters. The system identifies and compensates for speed reductions at corners automatically.
Solution Approach 2:
The system replaces complex manual programming logic with automatic detection and control algorithms. Instead of requiring programmed instructions for each corner position, the control unit uses real-time speed monitoring and automatic command generation to achieve uniform line width, substituting mechanical programming complexity with automated control intelligence.
3Manufacturing precision
If relative moving speed is reduced at corner positions, then application precision is improved, but discharge amount control becomes more difficult
Solution Approach 1:
The control unit continuously monitors relative moving speed and uses this feedback to automatically adjust discharge amount in real-time. When speed reduction at corners is detected, the system automatically compensates by adjusting discharge parameters, making the process as easy as maintaining constant speed while achieving precise application results.
Solution Approach 2:
The system dynamically changes discharge parameters based on detected movement conditions. When the robot slows down at corner positions, the control unit automatically modifies discharge amount parameters to maintain consistent application quality, eliminating the need for manual intervention and simplifying operator tasks.
Data Source
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AI summary
A liquid material application device is provided which can alleviate programming work necessary to realize a desired application for drawing a line (i.e., desired drawing application). In a liquid material application device including a discharge head (50) for discharging a liquid material, a worktable (25) on which a workpiece is placed, a robot (20) for moving the discharge head and the worktable relative to each other in XYZ directions, and a control unit including an arithmetic device and a storage device for storing an application program, the liquid material application device applying the liquid material to be drawn in the form of a line on the workpiece while the workpiece and the discharge head are moved relative to each other, the control unit includes a first control unit (30) for moving the workpiece and the discharge head relative to each other in accordance with the application program, and a second control unit (40) for controlling a discharge amount of the discharge head, the first control unit has a function of outputting speed information of the discharge head relative to the workpiece at a predetermined timing, and the second control unit has a function of automatically controlling the discharge amount on the basis of the speed information output from the first control unit.