Eccentric Clamping Rod Knife Assembly for Slicing Machines
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Solution Overview
Problem
Centrifugal-type slicers, such as the Model CC® machines, require improvements in knife securing mechanisms to enhance operational efficiency and ease of use, as existing bolt-based systems can be cumbersome and time-consuming for clamping and releasing knives.
Innovation Solution
A knife assembly with a clamping rod that rotates between clamping and release positions, using an eccentric camming surface to securely hold the knife between the holder and clamp, allowing for quick and reliable clamping and release without additional fulcrum components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bolt-based clamping system is used to secure the knife, then the knife can be firmly held in place, but the clamping and releasing process becomes time-consuming and operationally complex
Solution Approach 1:
The clamping rod is designed to rotate between a clamping position and a release position, transforming the static bolt-based system into a dynamic mechanism. This rotational movement allows operators to quickly switch between clamping and releasing states without complex assembly or disassembly operations, thereby improving ease of operation while maintaining reliable knife securing through the camming surface geometry
Solution Approach 2:
The camming surface on the clamping rod changes the geometric parameters of the clamp portions during rotation. As the clamping rod rotates from release to clamping position, the camming surface transforms the rotational motion into linear clamping force, changing the spatial relationship and force application parameters to achieve firm knife holding without time-consuming operations
2Device complexity
If a traditional clamp design with coplanar clamp portions is used, then the structure is simple, but additional fulcrum components are required which increase device complexity
Solution Approach 1:
The clamp portions are designed to be non-coplanar with their junction positioned away from the knife holder and knife, creating an asymmetric structure that eliminates the need for additional fulcrum components. This asymmetric geometry allows the clamping rod's camming surface to directly apply force to the clamp portions, simplifying the overall device structure while enabling rapid clamping operations through the rotational movement of the clamping rod
Solution Approach 2:
The invention extracts and eliminates the need for separate fulcrum components by integrating the fulcrum function directly into the non-coplanar clamp structure itself. The junction of the clamp portions serves as an inherent fulcrum point, removing additional parts and simplifying the device while maintaining the lever mechanism needed for rapid clamping action
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
Facilitates rapid and reliable clamping and release of knives, reducing operational time and complexity, while maintaining precise control over slice thickness and quality.
Implementation Method 1
a clamping rod that secures the clamp to the knife holder and clamps the knife therebetween, the clamping rod having a camming surface that contacts the outward surface of the clamp near the junction between the first and second clamp portions
Implementation Method 2
the clamping rod being rotatable to have a clamping position and a release position, the camming surface applying a force that clamps the clamp against the knife holder
Data Source
Figure 1
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AI summary
A slicing machine having a cutting head and a knife assembly mounted thereto, and methods for clamping a knife of the knife assembly in the slicing machine. The knife assembly includes a knife holder having a support surface that supports the knife and a clamp overlying the knife holder so that the knife is between the support surface of the knife holder and the clamp. A clamping rod is rotated from a release position to a clamping position to secure the clamp to the knife holder and clamp the knife therebetween. The clamping rod is eccentrically mounted to the cutting head and uses eccentricity to apply a clamping load to the clamp when rotated from the release position to the clamping position.