Rotary Screen Waste Sorting Device with Segmented Compression Roller
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Solution Overview
Problem
Existing waste treatment devices for mass distribution packaging struggle to effectively extract viscous materials and facilitate their passage through rotating drums, leading to inefficiencies in material removal and processing.
Innovation Solution
Incorporation of a rotating cylindrical drum with orifices, a rotating brush, motorized means for rotation, and additional compression means such as a roller with piercing and smooth sections to compress and guide packaging contents, along with elastic return mechanisms and a deflector to direct packages, enhancing material extraction and passage through the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotating brush is used to brush the internal surface of the drum, then material adhering to the packaging surface is removed, but viscous materials cannot be effectively extracted from the packaging
Solution Approach 1:
The roller is divided into two distinct sections: a piercing section with protruding elements for penetrating packaging, and a smooth rolling section for expelling materials. This segmentation allows each section to perform its specific function optimally, enabling effective extraction of viscous materials that a single uniform structure cannot achieve.
Solution Approach 2:
The roller acts as an intermediary element between the packaging and the drum wall. It mediates the extraction process by first piercing the packaging with its pointed section, then rolling against the drum wall to compress and expel the contents through the orifices, bridging the gap between simple brushing and effective material extraction.
2Productivity
If the drum rotates at high speed to centrifuge materials, then material passage through orifices is facilitated, but packaging may escape perforation
Solution Approach 1:
The piercing section of the roller performs preliminary action by penetrating and perforating the packaging before the high-speed rotation occurs. This pre-perforation ensures that the packaging is already compromised and ready for material expulsion, preventing escape during the subsequent high-speed centrifugal action.
Solution Approach 2:
Different sections of the roller have different local qualities: the piercing section has sharp protruding elements for penetration, while the rolling section has a smooth surface for compression. This local differentiation allows the system to achieve both packaging perforation and material expulsion without compromising retention during rotation.
3Productivity
If compression means are added to improve viscous material extraction, then extraction efficiency increases, but device complexity increases
Solution Approach 1:
The roller serves multiple functions within a single component: it pierces packaging with its pointed section, compresses materials against the drum wall during rotation, and facilitates material expulsion through the orifices. This multi-functionality reduces the need for multiple separate components, thereby limiting the increase in device complexity while achieving improved viscous material extraction.
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
Improves the efficiency of material extraction and processing by effectively removing adherent materials and facilitating their passage through the drum, reducing the risk of packaging escape and enhancing the 'rolling pin' effect for viscous items like charcuterie, while allowing for cleaning and operation adjustments.
Implementation Method 1
The compression means then create a guide for the waste in a space which is reduced as the waste approaches the wall of the drum. This ensures a compression of the packaging and its contents against the wall of the drum and therefore the extraction of the contents out of its packaging.
Implementation Method 2
At each jump out of the contact zone, the packaging being processed loses an additional portion of the materials which adhere to its surface, these being centrifuged when the packaging passes over the brush while spinning.
Data Source
Figure 1~2
Figure 3~6
Figure 4~5
AI summary
Treatment apparatus (1) for collecting material sticking to a surface of packaging (13) to be treated, this apparatus (1) comprising: -a rotary cylindrical drum (4) provided with orifices (6) for forming a screen that retains the packaging (13) and allows the material to be collected to pass through; -a rotary brush (7) mounted in the drum (4) in order to brush the internal surface of this drum; -motor-driven means (12) for driving the brush (7) and the rotary drum (4) in rotation; -an external casing (3) for collecting the material that has passed through the wall of the rotary drum (4) during the treatment; -means (20) for compression against the internal face of the drum (4), said compression means (20) being mounted in the rotary drum (4) in the immediate vicinity of the internal surface of the latter (4).