Multi-Shaft Shredder Layout for Finer Repeated Crushing
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Solution Overview
Problem
Conventional shredding machines discharge shredable objects with long lengths, requiring additional equipment and space for further processing, and struggle with mixed materials and soft objects that can wind around or stick to cutting blades, leading to inefficiencies and increased costs.
Innovation Solution
A shredding machine with multiple parallel rotational shafts and cutting blades that engage each other, featuring a throw-in port and offset discharge port to traverse the object multiple times, along with spiral traversing members and adjustable tilt, to finely shred objects without significant equipment or space expansion, and includes mechanisms for handling foreign objects and adjusting crush size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the shredable object is discharged after passing through between the cutting blades only once, then the discharge process is simple and fast, but the shredable object is discharged with long length and cannot be finely shredded
Solution Approach 1:
The discharge port is offset from the throw-in port in the shaft direction, creating a longitudinal dimension for material traversal. This dimensional change allows the material to pass through multiple cutting blade pairs sequentially as it moves from the upper throw-in port to the lower discharge port, achieving fine shredding without requiring multiple separate machines or complex multi-stage configurations
2Manufacturing precision
If multiple shredding machines are disposed in tandem or another fine crusher is installed, then fine shredding can be achieved, but equipment expenses and installation space increase greatly
Solution Approach 1:
Multiple shredding functions are merged into a single machine by arranging cutting blades on multiple rotational shafts along the shaft direction. The cutting blades on different shafts engage with each other to create multiple cutting zones within one machine, combining the functionality of multiple machines into one integrated unit, thereby reducing equipment costs and installation space while achieving fine shredding
3Manufacturing precision
If the discharge port is positioned directly below the throw-in port, then the machine structure is simple, but the shredable object passes through only once and cannot be finely crushed
Solution Approach 1:
The discharge port is offset from the throw-in port in the shaft direction, creating a longitudinal dimension for material traversal. This dimensional change allows the material to pass through multiple cutting blade pairs sequentially as it moves from the upper throw-in port to the lower discharge port, achieving fine shredding without requiring multiple separate machines or complex multi-stage configurations
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 machine effectively reduces shredable object length, handles mixed materials efficiently, prevents object entanglement, and maintains throughput while minimizing equipment costs and space requirements, achieving finer shredding with adjustable crush sizes and foreign object management.
Implementation Method 1
shredding machine for finely shredding a shredable object... by a shearing action of cutting blades
Implementation Method 2
a plurality of rotational shafts provided in parallel so as to support cutting blades in the transverse direction
Data Source
AI summary
In order to finely crush a shredable object, two rotational shafts for supporting cutting blades are provided in parallel in the transverse direction inside a shredder main body. The cutting blades that are provided with a plurality of cutting portions protruding from outer peripheral thereof are disposed in the shaft direction of the two rotational shafts so that these cutting portions engage with each other. A throw-in port for a shredable object is provided in one end portion of the rotational shafts in an upper portion of the shredder main body in the shaft direction. A discharge port for the shredable object is provided in the other end portion of the rotational shafts in a lower portion of this shredder main body in the shaft direction. Transverse feeding members for forwarding the shredable object that is thrown into the throw-in port and crushed by the cutting blades, to a discharge port side is provided and, thereby shredding the shredable object for a plurality of times inside the shredder main body.