Automatic Tape Dispensing With Self-Adjusting Tension Control

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Solution Overview

Problem

Existing tape dispensing devices require manual handling and are prone to malfunction due to ineffective tensioning, leading to costly maintenance issues.

Innovation Solution

An automatic tape dispenser system with a controller, sensor, and feed system that adjusts operations based on tape characteristics, utilizing a reel that moves along a track to maintain tension and includes a deck to exert a normal force perpendicular to the tape roll, ensuring consistent tape dispensing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual tape handling is used, then device complexity is reduced, but productivity decreases and reliability worsens due to ineffective tensioning

Engineering Contradiction:
Improvetape dispensing speedVSAvoidfeed system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The feed system is configured to automatically peel and receive tape from the tape roll without manual intervention. The system self-regulates tape feeding through its mechanical design, eliminating the need for users to manually grasp and pull tape while maintaining consistent tension through the reel's movement along the track.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The reel is designed to move dynamically along the track in response to tape dispensing. This dynamic adjustment allows the reel position to change automatically as tape is fed, maintaining optimal tension throughout the dispensing process without requiring complex active control mechanisms.

Inventive Principle:
Principle #15Dynamics

2Productivity

If automated tape feeding is implemented, then productivity improves, but reliability worsens due to tensioning issues

Engineering Contradiction:
Improvetape dispensing automationVSAvoidtape tension control
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system automatically maintains tape tension through the reel's self-adjusting movement along the track. As tape is dispensed, the reel moves to compensate for changes in tape roll diameter and tension requirements, ensuring consistent performance without manual intervention or complex sensor-based control systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The dynamic positioning of the reel along the track provides continuous tension adjustment. The reel's movement responds naturally to the mechanics of tape unwinding, maintaining reliable tension control throughout the automated dispensing process regardless of tape roll depletion.

Inventive Principle:
Principle #15Dynamics

3Loss of time

If manual tape cutting is required, then device complexity is reduced, but loss of time increases

Engineering Contradiction:
Improvetape cutting timeVSAvoidcutting system complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The cutting function is integrated into the feed system as a unified component rather than a separate manual operation. The feed system incorporates a cutting mechanism that automatically severs tape at the appropriate length as it is fed from the roll, combining feeding and cutting functions in a single automated process.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If tape tensioning is not properly maintained, then device complexity is reduced, but reliability worsens and maintenance costs increase

Engineering Contradiction:
Improvesystem malfunction resistanceVSAvoidtensioning system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The reel's movement along the track provides dynamic tension maintenance that adapts to changing conditions during tape dispensing. As the tape roll depletes and diameter decreases, the reel's position automatically adjusts to maintain proper tension, preventing malfunctions without requiring sensors or active control systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mechanical design of the track and reel system pre-establishes the tensioning geometry before dispensing begins. The track's configuration is designed to naturally guide the reel into positions that maintain optimal tension throughout the dispensing cycle, eliminating the need for real-time tension adjustment mechanisms.

Inventive Principle:
Principle #10Preliminary 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

The system provides automatic, reliable tape dispensing with reduced malfunctions and maintenance needs, maintaining optimal tension and adjusting to different tape types for efficient operation.

Implementation Method 1

The system is configured such that the deck exerts a normal force in a direction perpendicular to a point where the tape roll contacts the deck in order to maintain a desired tension on the tape roll

Methodology Applied
Scientific EffectNormal force: Force

Implementation Method 2

In use, the reel moves along the track such that in response to tape being dispensed from the dispensing system, the axis moves in a direction closer to the deck

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentUS12479686B2Automatic tape dispensing system
Publication Date: 2025.11.25 STERNBERG TODD
  • US12479686B2 patent drawing
  • US12479686B2 patent drawing
  • US12479686B2 patent drawing

AI summary

An automatic tape dispenser including a controller, a reel for supporting tape roll thereon, and a feed system configured to receive the tape and peel the tape from the tape roll. The system further includes a sensor communicatively coupled to the controller, wherein the sensor is operable to detect a characteristic of the tape such that in response to detecting the characteristic, an operation of the feed system is adjusted.