Strap Cutter Carriage with Mechanical Strap Detection
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Solution Overview
Problem
Existing strap cutting systems for bundles of elements are costly and inefficient, particularly when dealing with straps of similar colors to the bundle surface, leading to locating errors and requiring multiple cuts and additional straps.
Innovation Solution
A strap cutter carriage with a displacement chassis, cutting chassis, separating tongue, guide, presence detector, and cutting blade that allows for blind detection and cutting of straps without prior localization, using mechanical contact to identify and tension the strap for efficient cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera-based locating means is used to identify the strap, then the strap can be visually located, but locating errors occur when the strap color is similar to the bundle surface color
Solution Approach 1:
The patent replaces the optical camera-based locating system with a mechanical locating system. The locating means includes a locating element that mechanically contacts the bundle surface to detect the strap position through tactile feedback rather than visual detection. This mechanical substitution resolves the contradiction by making strap identification independent of color differences, ensuring reliable detection regardless of whether the strap color matches the bundle surface color.
2Adaptability or versatility
If a camera-based locating system is used, then strap identification is possible, but additional localization means and multiple cuts are required
Solution Approach 1:
The patent creates a universal cutting system where the mechanical locating means serves multiple functions: it locates the strap, guides the cutting element, and works with any strap type regardless of color or material. This single mechanical locating system replaces the need for multiple specialized localization devices, reducing overall system complexity while maintaining versatility across different strap types.
3Ease of manufacture
If the strap is cut before the extraction machine, then the cutting operation is independent, but significant cost is involved due to multiple devices
Solution Approach 1:
The patent merges the cutting device with the extraction machine into an integrated system. The cutting element is positioned on the extraction machine's gripper, allowing the extraction machine to perform both extraction and cutting functions. This merging eliminates the need for separate cutting and extraction devices, reducing equipment costs while maintaining operational independence through programmable control sequences.
Data Source
AI summary
Provided is a strap cutter carriage for cutting a strap and methods for cutting a strap. The strap cutter carriage includes a displacement chassis and a cutting chassis (204). It also includes a separating tongue fixedly mounted on the cutting chassis, the tongue including a ramp surface having a front end configured to slide between a strap and a reference surface of a bundle of elements such that the ramp surface separates the strap from the reference surface during the displacement of the displacement chassis. Also included is a guide fixedly mounted on the cutting chassis to guide the front end of the tongue relative to the reference surface, a presence detector for a strap which is in contact with the tongue, and a cutting blade configured to cut the strap.