Adjustable Diameter Tape Roll Core Assembly

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Solution Overview

Problem

Inconsistent inner diameters of sealing tape rolls from different manufacturers cause operational issues in carton or case sealing machines, leading to improper mounting, deformation, partial seating, or jamming, as they may be too small or too large for the core structures, resulting in substandard sealing and dispensing problems.

Innovation Solution

An adjustable tape roll cartridge core assembly featuring an expandable and contractible ring member and a threaded nut system that engages with a frusto-conically shaped collar, allowing the ring to radially expand and securely fit tape rolls of varying diameters, ensuring proper seating and tension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed diameter core structure is used, then the mounting process is simple, but tape rolls with inconsistent inner diameters cannot be properly accommodated, leading to improper mounting, deformation, or jamming

Engineering Contradiction:
Improveaccommodation of varying tape roll inner diametersVSAvoidcore structure design
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The core structure employs an expandable ring member that can dynamically adjust its outer diameter to match the inner diameter of different tape rolls. The ring member expands radially outward when the tape roll is mounted and contracts when the tape roll is removed, enabling the same core structure to accommodate tape rolls with varying inner diameters without deformation or jamming

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The core structure changes the dimensional parameter of the ring member's outer diameter to adapt to different tape roll inner diameters. By adjusting the outer diameter of the ring member through expansion and contraction, the system maintains proper fit and prevents improper mounting, deformation, or jamming across varying tape roll specifications

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the core structure outer diameter is made larger to accommodate larger tape rolls, then larger tape rolls can be mounted, but smaller tape rolls cannot be properly seated or will not track correctly

Engineering Contradiction:
Improveaccommodation of different sized tape rollsVSAvoidproper seating and tracking alignment
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The ring member dynamically adjusts its outer diameter to precisely match the inner diameter of the mounted tape roll, ensuring proper seating and tracking alignment regardless of the tape roll size. This dynamic adjustment eliminates the need for multiple fixed-size core structures and ensures consistent tracking performance across different tape roll dimensions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the outer diameter parameter of the ring member to correspond with the inner diameter of the tape roll being mounted. This parameter matching ensures that the tape roll is properly seated on the core structure and tracks correctly during dispensing, maintaining manufacturing precision across varying tape roll sizes

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the core structure outer diameter is made smaller to accommodate smaller tape rolls, then smaller tape rolls can be mounted, but larger tape rolls will not be properly secured and will exhibit relative movement

Engineering Contradiction:
Improveaccommodation of different sized tape rollsVSAvoidsecure mounting and consistent tension
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The ring member expands to match the outer diameter of larger tape rolls, ensuring they are properly secured without relative movement. The expandable design maintains reliable mounting and consistent tension across tape rolls of different sizes, eliminating the need to compromise between accommodating different dimensions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system adjusts the outer diameter parameter of the ring member to match the inner diameter of various tape rolls, ensuring secure mounting and consistent tension. This parameter adaptation maintains reliability across different tape roll sizes by preventing relative movement and ensuring proper engagement

Inventive Principle:
Principle #35Parameter changes

4Device complexity

If a single core structure design is used for all tape rolls, then device complexity is minimized, but improper mounting and deformation occur due to diameter mismatches

Engineering Contradiction:
Improvecore structure designVSAvoidmounting process
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The expandable ring member automatically adjusts to accommodate different tape roll inner diameters, maintaining ease of operation across varying tape roll sizes. The dynamic expansion and contraction mechanism allows tape rolls to be easily mounted and removed without deformation, while still using a single unified core structure design

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The ring member changes its outer diameter parameter to match the inner diameter of the tape roll being mounted, enabling easy mounting without deformation. This parameter adaptation maintains operational ease across different tape roll sizes while using a single core structure design

Inventive Principle:
Principle #35Parameter changes

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 ensures that tape rolls of different diameters are securely mounted and fixedly secured, preventing relative movement and ensuring proper tracking, dispensing, and tension application, thereby improving the reliability and quality of carton or case sealing operations.

Implementation Method 1

the expandable and contractible ring member will be forced onto the frusto-conically shaped external peripheral surface portion of the collar member thereby expanding the ring member radially outwardly so as to effectively tightly engage the inner peripheral surface portion of a sealing tape roll

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS7819357B2Adjustable diameter tape roll cartridge core assembly of a tape roll dispensing cartridge assembly
Publication Date: 2010.10.26 SIGNODE IND GROUP LLC
  • US7819357B2 patent drawing
  • US7819357B2 patent drawing

AI summary

An adjustable diameter tape roll cartridge core assembly which permits various different tape rolls, manufactured, for example, by various different tape roll manufacturers, and characterized by different internal diameter dimensions, to be fixedly and securedly mounted upon the tape roll cartridge core member of a tape roll dispensing cartridge assembly of a carton or case sealing machine. The core assembly comprises an expandable and contractible annular ring member whereby the external diametrical extent of such expandable and contractible annular ring member is adjustable so as to in fact be capable of tightly engaging the inner peripheral surface portion of any one of various different tape rolls having various different internal diameter dimensions.