Component Mounter Head Lifting and Nozzle Segmentation
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Solution Overview
Problem
Conventional component mounters experience reduced production efficiency due to the time required for lifting and lowering the suction nozzle, which can be improved by optimizing the component collection process.
Innovation Solution
The component mounter incorporates a head lifting and lowering device to vertically move the head, reducing the vertical movement of collecting members and enabling faster component collection, along with a control system to manage the movement of multiple collecting members to avoid obstacles during the collection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the suction nozzle is lifted and lowered to pick up components, then components can be collected and mounted, but the overall production efficiency deteriorates due to the time required for nozzle movement
Solution Approach 1:
The patent divides the lifting and lowering function into two separate systems: the head lifting and lowering device that moves the entire head assembly, and the individual nozzle lifting and lowering devices that move only the nozzles. This segmentation allows the head to be positioned close to the component tray while keeping nozzle travel distance minimal, thereby reducing overall movement time and improving production efficiency
Solution Approach 2:
The patent introduces vertical movement of the head assembly as an additional degree of freedom. By lowering the head to the vicinity of the component tray before component pickup, the system reduces the vertical travel distance required by individual nozzles, transforming a single-dimensional nozzle movement problem into a two-dimensional positioning solution that optimizes component collection speed
2Loss of time
If the head is lowered to the vicinity of the component tray to reduce collecting member movement, then component collection time is shortened, but the head may come into contact with obstacles
Solution Approach 1:
The patent implements dynamic control of the head position through the head lifting and lowering device. The control device adjusts the head's vertical position based on the specific component pickup location, allowing the head to be lowered only as much as necessary for each operation. This dynamic positioning prevents head contact with obstacles while minimizing nozzle travel distance and maintaining fast component collection
Solution Approach 2:
The control device monitors the head position and coordinates the operation of the head lifting and lowering device with the individual nozzle lifting and lowering devices. This feedback mechanism ensures that the head is positioned optimally for each component pickup operation, preventing contact with obstacles while maintaining efficient component collection timing
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
This configuration significantly shortens the time required for collecting components from a tray and prevents the head from contacting obstacles, enhancing overall production efficiency and accuracy.
Implementation Method 1
a negative pressure is applied to a tip of the suction nozzle to pick up the component
Data Source
AI summary
There is a component mounter of the present disclosure for collecting a component accommodated in a tray supplied from a tray unit and mounting the component on a board, including: a head configured to hold multiple suction nozzles capable of collecting the component; a first nozzle lifting and lowering device configured to vertically move a suction nozzle at a predetermined position of the head with respect to the head; a second nozzle lifting and lowering device configured to vertically move a suction nozzle at a position different from the predetermined position of the head with respect to the head; a head lifting and lowering device configured to vertically move the head; and a head moving device configured to move the head in a horizontal direction together with the head lifting and lowering device.