Adjustment Mechanism for Grading Systems with Protective Cover
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Solution Overview
Problem
Existing grading systems using ridge-belts face challenges in accurately adjusting channel width during the grading process, leading to debris accumulation and bacterial growth, which affects the precision and cleanliness of the grading mechanism.
Innovation Solution
The introduction of a cover member to protect the joining regions of support and adjusting screwing members, along with a shorter and wider guide section design, and a hollow structure in the screwing section to evacuate fluid, combined with a double-action screwing mechanism for precise gap adjustment, addresses the issue of debris accumulation and bacterial growth, ensuring accurate and easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjusting device components (screws, support members) are exposed during operation, then the adjusting mechanism can be accessed and operated, but debris, particles, dirt and water accumulate in the components creating harmful environments for bacterial growth
Solution Approach 1:
A protective cover made of flexible material is introduced to enclose the adjusting device components. The cover can be flexed open during adjustment operations and closed during grading operations to protect the components from debris and water accumulation, thereby preventing bacterial growth while maintaining accessibility when needed.
Solution Approach 2:
The harmful environment (debris accumulation) is isolated by extracting the adjusting components from the exposed environment and enclosing them within a protective cover, separating the adjustment mechanism from the contaminating grading environment.
2Manufacturing precision
If the channel width is adjusted frequently during grading process, then the grading precision is improved, but the adjusting device complexity increases
Solution Approach 1:
The adjusting device is designed with movable support members that can be dynamically repositioned along the grading device. This allows the channel width to be adjusted during operation by moving the support members to different positions, enabling frequent adjustments without requiring complex reconfiguration of the entire device.
Solution Approach 2:
Screws with curved or helical threads are used in the adjusting mechanism, allowing smooth and continuous adjustment of the support member positions. The curved screw design enables precise control of channel width while maintaining a relatively simple mechanical structure that can be easily manufactured.
3Manufacturing precision
If the gap between ridge-belts is made variable during operation, then the sorting accuracy is improved, but the risk of objects getting stuck increases
Solution Approach 1:
The gap between ridge-belts is made dynamically adjustable during operation through the movable support members. The gap can be varied according to the size of objects being graded, improving sorting accuracy while maintaining reliable operation by optimizing the gap size for each grading scenario.
Solution Approach 2:
The physical parameter of gap width is changed during operation to match the size of different object categories. By adjusting the gap parameter dynamically, the system achieves high sorting accuracy for various object sizes while preventing objects from getting stuck by maintaining appropriate clearance.
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 solution enables precise and accurate adjustment of gap widths between ridge-belts, minimizing the risk of object sticking and facilitating easier maintenance, resulting in improved sorting and maintenance of the grading device.
Implementation Method 1
The support members and the adjusting screwing members alternatively arranged on an adjusting screwing shaft. Both components comprise screwing sections which regulates an increase or a decrease in the gap between the support members when the adjusting screwing shaft is rotated.
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3D
AI summary
The present invention relates to an apparatus and a method for grading sensitive products. The apparatus and a method treat the objects to be graded gently and is accurate and may be constructed so as to handle extremely large quantities. The grading device of the present invention has grading channels that are wider at the outlet than at the intake. The belt machine draws the objects forward between two inclined belts (3) which form the channel. An adjusting device (9) is implemented perpendicular underneath the belts (3) of the apparatus comprising alternatively arranged support members (10) and adjusting members (12) arranged on an adjusting screwing shaft (11). Both components (10, 12) comprise screwing sections (14, 21) which regulates an increase or a decrease in the gap between the support members (10) when the adjusting screwing shaft (11) is rotated.