Pipe Cutting Head With Pivoting Blade for Tight Access Removal
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Solution Overview
Problem
Existing working devices for cutting pipes, especially in civil engineering, face challenges in efficiently handling and processing, particularly in difficult-to-access areas, where the cutting edge needs to be moved out of the cutting direction after completing a cut, and traditional designs require the cutting edge to be retracted back through the workpiece.
Innovation Solution
The cutting edge is pivotally connected to the feed part or a holding part, allowing it to be pivoted away from the cutting direction, enabling easy removal and positioning, with a flexible band or chain connection allowing the cutting edge to be displaced linearly or curvilinearly, and a receiving contour design that supports the workpiece without forming a counterblade, facilitating easy handling and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cutting edge is pivotally connected to the feed part, then the cutting edge can be moved out of the cutting direction after completing a cut, but the device structure becomes more complex
Solution Approach 1:
The cutting edge is separated from the feed part as an independent component that can pivot relative to it. This segmentation allows the cutting edge to be moved out of the cutting direction after completion, improving handling while maintaining a relatively simple pivot connection rather than a rigid integrated structure.
Solution Approach 2:
The cutting edge is connected to the feed part through a pivot connection that allows dynamic movement. The cutting edge can pivot from a working position during cutting to a retracted position after cutting, enabling easy removal from the work area without requiring complex disassembly mechanisms.
2Productivity
If the cutting edge completely passes through the workpiece, then the cutting process is more efficient, but the handling in difficult-to-access areas becomes more difficult
Solution Approach 1:
The cutting edge is designed to move not only in the cutting direction (linear dimension) but also in a pivoting motion (angular dimension). After completely passing through the workpiece for efficient cutting, the cutting edge can pivot out of the cutting direction to a retracted position, enabling easy removal from difficult-to-access work areas.
3Ease of operation
If the receiving contour supports the workpiece without forming a counterblade, then the workpiece handling is easier, but the cutting stability may be reduced
Solution Approach 1:
The receiving contour is designed as a separate support structure that does not form a rigid counterblade with the cutting edge. This segmentation allows the workpiece to be easily handled and positioned in the receiving contour while the cutting edge maintains stable contact with the workpiece during the cutting process through its pivotal connection to the feed part.
Data Source
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AI summary
The invention relates to a tool (1) for cutting a workpiece (24), said tool having a tool head (18) which has a receiving contour (23), the workpiece (24) being receivable in said receiving contour (23), wherein the tool head (18) also has a movable cutting edge (13) with a cutting contour, wherein the cutting edge (13), in the course of a cutting process, passes through the receiving contour (23), wherein, in addition, the cutting edge (13) is subjected to the effect of an advancement part (14) and can be moved to such an extent in the cutting direction (s) that it can pass all the way through a received workpiece (24). In order to further improve a tool of the type in question in terms of ease of handling and in terms of the cutting process, a first approach is that, from a position of the cutting edge (13) reached after the cutting edge has passed all the way through, the cutting edge (13), with removal from the advancement part (14), can be moved out from the cutting direction (s).