Blade Mounting Device with Recessed Guide for Easy Cleaning
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Solution Overview
Problem
Existing blade holders in derinding devices are difficult to clean and do not allow for quick and easy blade changes without compromising on reliability and precision.
Innovation Solution
A blade holding device with a blade bar and a fixing bar that can be moved relative to each other, featuring guide devices with a recessed second guide device for easy access and high clamping forces, and a two-stage clamping mechanism with eccentric devices for secure blade fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide devices are designed to be sufficiently precise and stable for reliable blade fixation, then blade fixation reliability is improved, but cleaning accessibility deteriorates
Solution Approach 1:
The second guide device is inverted by placing it inside a recess in the fixing strip rather than on the outer surface. This inversion allows cleaning tools to access the guide surfaces from the blade side, resolving the contradiction between maintaining reliable guidance and enabling easy cleaning.
Solution Approach 2:
The second guide device is nested within a recess of the fixing strip, creating a layered structure where the guide element is contained within the body of the fixing strip. This nesting allows the guide surfaces to remain precise and stable while becoming accessible for cleaning through the recess opening.
2Object-affected harmful factors
If clamping forces are increased to prevent blade contamination, then blade purity is improved, but device complexity increases
Solution Approach 1:
The clamping mechanism replaces simple mechanical clamping with eccentric devices that generate clamping forces through rotational movement. This substitution allows high clamping forces to be generated with a more compact and integrated mechanism, preventing blade contamination without proportionally increasing device complexity.
Solution Approach 2:
The eccentric devices change the mechanical parameters by converting rotational motion into translational clamping motion, generating varying clamping forces during the rotation cycle. This parameter change allows high clamping forces to be achieved during critical phases while maintaining a relatively simple overall device structure.
3Ease of manufacture
If guide devices are made structurally simple and cost-effective, then manufacturing cost is reduced, but cleaning accessibility deteriorates
Solution Approach 1:
By inverting the second guide device into a recess, the design maintains structural simplicity and cost-effectiveness while simultaneously improving cleaning accessibility. The recessed configuration does not add significant manufacturing complexity but fundamentally changes how the guide surfaces are accessed for cleaning.
4Productivity
If blade changes are made quick and easy, then productivity is improved, but blade fixation reliability may deteriorate
Solution Approach 1:
The fixing strip is designed to be movable relative to the blade bar, allowing dynamic adjustment between clamped and unclamped positions. This dynamics enables quick blade changes through simple movement while maintaining reliable fixation when clamped, as the same movable mechanism ensures proper engagement of the guide devices.
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 solution enables easy cleaning, secure blade fixation, and quick blade changes while maintaining precision, preventing contamination and ensuring reliable operation in derinding devices.
Implementation Method 1
The clamping device has a two-stage clamping mechanism with which a translational movement of the fixing strip in a direction parallel to the contact surface and a clamping movement for pressing the pressure surface against the blade can be generated
Data Source
Figure 1~2
Figure 3A~3D
Figure 4A~4D
AI summary
The present invention relates to a blade holding device for fixing a blade (16) with a cutting edge, in particular for a derinding device, comprising: - a blade bar (12) with a contact surface (14) for receiving the blade (16), - a fixing strip (18) movable relative to the contact surface (14) with a pressure surface (24) for fixing the blade (16) on the contact surface (14), - a clamping device (22) for clamping the blade bar (12) and the fixing strip (18) against each other, wherein the blade bar (12) has a first guide device (30) which, when the blade bar (12) and the fixing strip (18) are clamped, interacts with a second guide device (32) which is arranged on the fixing strip (18) and wherein the second guide device (32) is arranged in a recess, opening or perforation (34) passing through the fixing strip.