Hot-Wire Tape Cutting and Pulling for Safe Package Sealing
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Solution Overview
Problem
Conventional tape application systems are complex, costly, and pose safety risks, particularly when handling food items, due to potential cutter breakage and contamination.
Innovation Solution
A tape applicator apparatus featuring a hot wire assembly for cutting tape and a puller mechanism to apply tape to packages, utilizing a moving assembly, grabber elements, and tape wipers for consistent application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cutting devices are used to cut tape, then the tape can be cut, but the cutting devices may breakage and elements may be inadvertently placed within the product
Solution Approach 1:
The patent replaces conventional mechanical cutting devices (blades, knives) with a hot wire cutting system. The hot wire is heated to a temperature sufficient to melt and cut through the tape material, eliminating the mechanical contact and potential breakage of traditional cutting elements. This substitution of mechanical cutting with thermal cutting resolves the safety concern while maintaining effective tape cutting capability.
2Productivity
If conventional tape application systems are used, then tape can be applied, but the systems are complex and costly
Solution Approach 1:
The patent extracts and eliminates unnecessary complex components from conventional tape application systems. By using a hot wire cutting mechanism integrated with a simple tensioning system and application roller, the design removes complex mechanical cutting mechanisms, multi-stage tensioning systems, and sophisticated control mechanisms found in conventional systems. This extraction of essential functions while removing complexity achieves effective tape application with a simpler, more cost-effective system.
Solution Approach 2:
The hot wire assembly serves multiple functions: it cuts the tape, provides a clean cut edge, and integrates with the tensioning and application mechanism. The single hot wire element replaces multiple separate cutting components, while the integrated system handles tensioning, positioning, and application in a unified mechanism, reducing overall system complexity while maintaining full tape application capability.
3Productivity
If conventional cutting devices are used, then tape can be cut, but maintenance needs increase due to breakage and wear
Solution Approach 1:
The hot wire is designed as a simple, replaceable component that can be easily replaced when worn or damaged. Unlike complex mechanical cutting devices with multiple moving parts, bearings, and blades that require sophisticated repair procedures, the hot wire is a simple resistive heating element that can be quickly swapped out. This approach treats the cutting element as a consumable component, significantly reducing maintenance complexity and repair needs while maintaining continuous productivity.
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
Provides a clean, consistent, and safe tape application process, eliminating blade maintenance hazards and ensuring a straight edge, suitable for packaging food items.
Implementation Method 1
an electrical power source coupled to the wire and configured to heat the wire
Implementation Method 2
the wire is configured to perform a cut of the tape in the cutting position
Data Source
AI summary
A tape applicator apparatus is disclosed and includes a tape cutter mechanism and a (tape) puller mechanism. The tape cutter mechanism includes a first frame, a product tension mechanism coupled to the first frame, and a hot wire assembly coupled to the first frame. The hot wire assembly includes a first mount, a second mount, and a wire between the first mount and the second mount. The puller mechanism includes a puller frame, a grabber coupled to the puller frame, and a grab actuator coupled to the grabber. The grab actuator may activate a grab operation of the grabber. The puller mechanism includes a reach actuator coupled to the puller frame and the grabber. The tape applicator apparatus may be configured to receive a package between the tape cutter mechanism and the puller mechanism.