Jointly Moving Cutting and Splitting Blade Assembly
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Solution Overview
Problem
Existing cutting and splitting devices often fail to completely separate log pieces, with partially split logs remaining attached due to inadequate control during the cutting and splitting process, leading to inefficiencies and incomplete firewood production.
Innovation Solution
A cutting and splitting device with a vertically oriented feed channel, a jointly movable cutting and splitting blade assembly, and side support elements that ensure precise control and complete separation of log pieces by forcing them through a splitting blade, allowing for concurrent and automatic cutting and splitting operations without manual handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the log is sliced or shorn through with a shearing blade that also has a wedge for splitting, then the cutting and splitting occur in the same work stage, but the pieces of log are not entirely split into separate pieces and remain attached to each other
Solution Approach 1:
The device divides the log processing into two distinct functional components: a shearing blade for cutting and a separate splitting blade for splitting. This segmentation allows each blade to perform its specific function effectively, ensuring complete separation of log pieces while maintaining efficient joint operation.
Solution Approach 2:
A wedge-shaped intermediary component is introduced between the shearing blade and the log pieces. This wedge acts as a mediator that pushes the cut log pieces against the splitting blade, ensuring they are completely separated. The intermediary enables the transition from partial to complete splitting without requiring manual intervention.
2Reliability
If a separate pushing movement through a splitting blade is used for final splitting, then complete splitting can be achieved, but control of the piece of log after cutting becomes problematic and requires manual handling
Solution Approach 1:
The shearing blade assembly and splitting blade assembly are merged into a single integrated unit that moves together. This combination ensures that the cut log pieces are automatically positioned and pushed against the splitting blade without requiring manual handling. The merged assembly maintains proper alignment and control throughout the cutting and splitting process.
Solution Approach 2:
The device enables self-service operation where the cut log pieces automatically guide themselves onto the splitting blade through the wedge mechanism. The system performs its own positioning and control functions without external intervention, achieving complete splitting while maintaining ease of operation.
3Reliability
If the cutting blade and splitting blade are provided separately with independent movements, then each function can be optimized, but the device complexity increases
Solution Approach 1:
The shearing blade assembly and splitting blade assembly are merged into a single jointly movable unit. This reduces the number of independent movable assemblies from two to one, simplifying the device structure while maintaining the functional optimization of both cutting and splitting operations.
Data Source
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AI summary
The invention relates to a cutting and splitting device that comprises a frame (1), a substantially vertical feed channel (2) supported to the frame and having a feed opening (3) at the upper end for feeding a log being processed into the cutting and splitting device, at the lower end of the feed channel, moving in the transverse direction in relation thereto, a cutting blade (4) with a power unit (5) and a splitting blade (6) for splitting the cut piece of log. According to the invention, the cutting blade (4) and the splitting blade (6) form a jointly movable assembly and the cutting and splitting device comprises below the cutting blade a fixed stopper (7) against which the splitting blade is arranged to press and split the piece of log cut by the cutting blade.