Perforating Tool Segmented Recesses Clamping Force
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Solution Overview
Problem
Existing perforating tools for blister bands are prone to deformation due to their lightweight aluminum construction, which compromises the clamping force of the perforating blades, making them less effective during the perforation process.
Innovation Solution
The perforating tool features a tool body with elongated recesses containing knife blades, where each blade is clamped using a channel-based system with actuating elements that apply a high clamping force, preventing deformation and ensuring secure blade retention, while minimizing space and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the perforating tool is made of aluminum to reduce weight, then the weight is reduced, but the tool becomes easier to bend and deforms during operation
Solution Approach 1:
The tool body is segmented into multiple recesses, each containing a knife blade, with channels providing clamping elements. This segmentation allows the lightweight aluminum structure to be reinforced at critical points without increasing overall weight, maintaining both low weight and structural stability.
Solution Approach 2:
The patent uses composite construction by combining aluminum tool body with reinforcing elements and clamping mechanisms. The aluminum provides weight reduction while the clamping structure with channels and actuating elements provides the necessary structural reinforcement to prevent deformation during operation.
2Device complexity
If the clamping mechanism is simplified to reduce device complexity, then the device complexity is reduced, but the clamping force is insufficient to prevent blade deformation
Solution Approach 1:
The clamping mechanism uses actuating elements that can be dynamically adjusted to apply optimal clamping force. The channels are designed with specific geometries that allow the actuating elements to generate high clamping forces through mechanical advantage, providing sufficient force to prevent blade deformation while keeping the mechanism relatively simple.
Solution Approach 2:
The channels serve as intermediaries between the actuating elements and the knife blades. These channels transmit and amplify the clamping force from the actuating elements to the blades, ensuring sufficient clamping force is applied to prevent deformation without requiring complex direct clamping mechanisms.
3Force
If the channels are designed to taper significantly to improve clamping effectiveness, then the clamping force is improved, but the space required for clamping elements increases
Solution Approach 1:
The channels are designed with localized tapering in specific regions where clamping force is most needed. The tapering is concentrated in the critical clamping zones rather than throughout the entire channel length, providing effective clamping force while minimizing the overall space required for the clamping elements and maintaining compact tool design.
Data Source
Figure 1
Figure 2
AI summary
The perforating tool (1) for perforating a blister strip (7) has recesses (10) that serve to receive the cutting blades (15). Wider channels (18) are also provided in the area of the recesses (10), which are tapered in at least one section (22) and in which a clamping element (17) is arranged that clamps the respective cutting blade (15). A plurality of actuating elements (25) interact with the clamping elements (17) such that their actuation moves the plurality of clamping elements (17) towards the tapering of the channels (18), thereby clamping the plurality of cutting blades (15).