Thermoplastic Screed Die Box Quick Height Adjustment
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Solution Overview
Problem
Conventional thermoplastic pavement marking systems require adjustments in the field to compensate for variables like thickness and environmental conditions, but existing adjustment mechanisms are cumbersome and require disassembly.
Innovation Solution
A screed die box that can be adjusted using screwdrivers without disassembling any part of the unit, allowing for precise control of the screed plate position to achieve the desired thickness and adapt to changing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional adjustment mechanisms with bolts and nuts are used, then the screed plate position can be adjusted, but the adjustment process requires disassembly and is cumbersome
Solution Approach 1:
The patent extracts the adjustment function from the complex mounting mechanism by providing a separate, removable screed plate that can be independently adjusted. The screed plate is detached from the bucket assembly, allowing it to be removed and repositioned without disassembling the entire mounting structure, thus simplifying the adjustment operation while maintaining positioning capability.
Solution Approach 2:
The screed plate is divided into multiple segments or sections that can be independently positioned. This segmentation allows for flexible adjustment of the screed plate height and angle by repositioning individual segments, enabling precise control of thermoplastic application thickness without requiring complex mounting mechanism adjustments.
2Adaptability or versatility
If the screed die box is made adjustable for different thicknesses, then it can adapt to environmental variables, but the adjustment mechanism becomes more complex
Solution Approach 1:
The screed plate is designed with dynamic positioning capability, allowing it to be quickly adjusted to different heights and angles during operation. The screed plate can be raised or lowered relative to the bucket assembly to change the application thickness, providing adaptability to environmental variables without requiring permanent structural modifications to the die box.
Solution Approach 2:
The screed plate is pre-configured with multiple positioning locations or adjustment holes that allow for quick height changes. By preparing these positions in advance during manufacturing, the operator can rapidly switch between different thickness settings by simply moving the screed plate to the desired pre-defined position, rather than making continuous adjustments during field operation.
Data Source
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AI summary
A screed die box includes a screed die bucket, a screed die box gate, a screed die box lever, a screed plate, and a positioning member. The screed die box gas is slidably connected at the bottom of the screed die bucket. The screed die box lever is rotatably connected to the screed die bucket and the screed die box gate for sliding the screed die box gate between an open position and a closed position. The screed plate is slidably connected along an aft side of the screed die bucket and includes a positioning aperture. The positioning member is located in the screed die bucket and engages the screed plate, the positioning member sliding the screed plate as the positioning member is rotated.