Split Blade Housing With Cam Expansion for Fast Rotary Knife Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional power operated rotary knives face challenges in efficiently and conveniently changing or maintaining the rotary knife blades due to complex mechanisms requiring manual adjustments and potential operator errors, leading to inefficiencies and component wear.
Innovation Solution
A split blade housing assembly with a two-position cam mechanism that securely holds the blade in a supporting position for operation and expands to a changing position for easy blade removal, eliminating the need for manual adjustments and ensuring consistent operating clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional complex mechanism is used for blade changing, then the blade can be changed, but the mechanism requires manual adjustments and potential operator errors leading to inefficiencies and component wear
Solution Approach 1:
The cam mechanism automatically maintains operating clearance through its two-position design. In the first position, the cam holds the blade housing in a blade-supporting position with optimal clearance. In the second position, the cam expands the blade housing to facilitate blade removal. This self-adjusting mechanism eliminates manual adjustments and operator errors while simplifying the blade changing operation.
2Productivity
If manual adjustments are required for blade changing, then the mechanism can be operated, but operator downtime increases and component wear accelerates
Solution Approach 1:
The cam mechanism automatically transitions between the blade-supporting position and the blade-changing position, maintaining optimal operating clearance without manual intervention. This self-service capability eliminates operator downtime and accelerates blade changing efficiency by removing the need for manual adjustments.
3Reliability
If the blade housing is held in a fixed position, then operating clearance is maintained, but blade removal becomes difficult
Solution Approach 1:
The cam mechanism dynamically positions the blade housing in two distinct states. In the first position (blade-supporting position), the cam holds the housing to maintain consistent operating clearance during cutting operations. In the second position (blade-changing position), the cam expands the housing to facilitate easy blade removal. This dynamic positioning resolves the contradiction between maintaining fixed clearance and enabling easy blade removal.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A split blade housing (7800) for supporting an annular rotary knife blade (7300) of a power operated rotary knife (7000) for rotation about a central axis of rotation (R). The split blade housing (7800) comprises an annular blade support section (7850), and a mounting section (7802) extending from the blade support section, the mounting section (7802) including a split (7801a) extending through the mounting section and an inner wall (7852) of the blade support section (7850) and defining a split distance between first and second circumferential ends (7852a, 7852b) of the inner wall (7852) of the blade support section (7852). The mounting section split (7801a) includes a first split portion (7801b) adjacent an outer wall (7806) of the mounting section (7802) and a second split portion (7801c) adjacent an inner wall (7804) of the mounting section (7802), the second split portion (7801c) extending transversely with respect to the first split portion (7801b).