Waste Compaction Roller Shearing Mechanism
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Solution Overview
Problem
Existing waste compacting devices experience jams when processing plastic waste in film form due to its tendency to accumulate between the compacting roller and the return block, leading to inefficiencies and manual intervention.
Innovation Solution
A compacting device with shearing members mounted on the column and counter-shearing members on the return block, which cooperate to shear plastic waste as it accumulates, preventing aggregation and ensuring continuous compaction by the roller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a compacting roller is used to compact plastic waste, then compaction efficiency is improved, but plastic films wrap around the column and accumulate on the return block causing jams
Solution Approach 1:
The cutting means divides the plastic waste into segments by shearing it between the shearing member on the column and the counter-shearing member on the return block. This segmentation prevents the plastic films from wrapping around the column and accumulating on the return block, thereby resolving the contradiction between compaction efficiency and operational continuity
Solution Approach 2:
The invention converts the harmful accumulation of plastic waste on the return block into a beneficial shearing action. By positioning the cutting means where the plastic waste naturally accumulates, the harmful aggregation becomes the precise location where shearing occurs, preventing jams while maintaining continuous operation
2Reliability
If cutting means are installed to shear plastic waste, then accumulation is reduced, but the device complexity increases
Solution Approach 1:
The cutting means is merged with the existing structural elements of the compacting device. The shearing member is mounted on the column and the counter-shearing member is mounted on the return block, combining the cutting function with the existing mechanical components rather than adding separate complex cutting mechanisms
Solution Approach 2:
The return block serves multiple functions: it supports the compacting roller, provides the counter-shearing member for cutting plastic waste, and maintains the mechanical transmission function. This multi-functionality reduces the need for additional dedicated components, thereby limiting the increase in device complexity while improving anti-jam performance
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
The device effectively prevents jams and ensures efficient compaction of plastic waste into bales by shearing accumulated materials, allowing for smooth operation and reduced manual intervention.
Implementation Method 1
cutting means installed between said column and said compaction roller for cutting said waste surrounding said column. Said cutting means comprise a shearing member mounted on said column and a counter-shearing member mounted on said return block
Implementation Method 2
as the waste is loaded from above into the reception space, the roller being both driven in rotation around the axis of the vertical column and also in rotation on itself, it compacts the waste as it is loaded in successive layers, under the effect of the roller's own weight
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a compaction device (10) adapted to be mounted movably in a receiving space (25). It comprises: a column (30) adapted to be carried in the center of said receiving space (25); a return block (42) rotatably mounted on said column (30); a compaction roller (44) having an end (43) rotatably mounted on said return block (42); drive elements for simultaneously driving said return block (42) in rotation and said compaction roller (44) in rotation relative to said return block (42); and, cutting means (70, 76) comprising a shearing element (76) mounted on said column (30) and a counter-shearing element (70) mounted on said return block (42) adapted to intersect said shearing element (76) at each revolution of said return block (42).