Pelletizer Observation Window Side-View Optical Path
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Solution Overview
Problem
Conventional pelletizer apparatuses face difficulties in visually observing and adjusting the clearance between cutting teeth and a dice due to the placement of observation windows, making it hard to detect changes in clearance caused by temperature changes or wear, which affects the quality of cut surfaces.
Innovation Solution
Incorporating an observation unit with an optical system that allows for the visualization of the cut section from outside the housing chamber, using reflecting mirrors or endoscopes to send optical images of the cut surface to a camera or display, enabling real-time monitoring and adjustment of the clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a window is formed on the upper wall of the housing chamber for observation, then the housing chamber structure is simple, but the cut section cannot be clearly observed from the window
Solution Approach 1:
The observation window is relocated from the upper wall to the side wall of the housing chamber, changing the observation dimension from top-down to side-view. This positional change in another dimension enables direct visual access to the cut section while maintaining structural simplicity.
Solution Approach 2:
A mirror is introduced as an intermediary component to reflect and redirect the optical path from the cut section to the observation window. This allows the window to be positioned on the side wall while still capturing the cut surface image that would otherwise be inaccessible from that angle.
2Ease of operation
If the clearance between cutting teeth and dice is increased, then the device operation is easier, but the cut surface quality deteriorates with burrs and elongation
Solution Approach 1:
The side-view observation window provides real-time visual feedback on cut surface quality, allowing operators to immediately detect burrs or elongation and adjust the clearance between cutting teeth and dice accordingly. This closed-loop feedback enables precise control of cutting parameters while maintaining ease of operation.
3Device complexity
If observation is performed from the upper wall window, then the housing chamber structure is simple, but clearance changes due to temperature or wear cannot be detected
Solution Approach 1:
The observation window is repositioned from the upper wall to the side wall, changing the observation angle to directly face the clearance zone between cutting teeth and dice. This dimensional change enables visual detection of clearance variations caused by thermal expansion or wear, which were invisible from the upper wall perspective.
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
Enables clear visual checking of the cut section, allowing for immediate determination of cut surface quality and clearance accuracy, facilitating instant adjustments and improving the melting process of cut pieces.
Implementation Method 1
the observation unit including an optical system which sends an optical image of the cut section from the inside of the housing chamber to the outside of the housing chamber
Data Source
AI summary
This pelletizer apparatus includes an observation unit for observing, from the outside of a housing chamber, a cut section of a synthetic resin cut by cutting teeth inside the housing chamber. The observation unit includes an optical system which sends an optical image of the cut section from the inside of the housing chamber to the outside of the housing chamber. Thus, with this pelletizer apparatus, the cut section can be visually checked clearly via the optical system.