Rotary Drum Manufacturing Machine for Disposable E-Cigarette Cartridges

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Solution Overview

Problem

Current manufacturing machines for disposable electronic cigarette cartridges have limitations in achieving high productivity while maintaining quality and are complex and costly to produce.

Innovation Solution

A manufacturing machine with a modular design featuring intermittent motion drums and synchronized feeding and welding stations, allowing for simultaneous processing of multiple cartridges, which enhances productivity and simplifies the production process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional manufacturing machines are used for disposable cartridges, then quality standards are maintained, but productivity is limited and device complexity increases

Engineering Contradiction:
Improvehourly production rateVSAvoidmachine complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The manufacturing machine is divided into multiple independent working stations (filling station, compression station, sealing station, weighing station) arranged on a rotary table. Each station performs a specific function, allowing simultaneous processing of multiple cartridges while maintaining operational simplicity at each individual station.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple functional stations are combined into a single integrated rotary table system that processes multiple cartridges simultaneously. The rotary table merges transportation, positioning, and processing functions into one cohesive mechanism, increasing productivity without proportionally increasing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If conventional manufacturing machines are used for disposable cartridges, then quality control is achieved, but production speed is restricted and manufacturing cost increases

Engineering Contradiction:
Improveproduction speedVSAvoidmanufacturing cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The machine uses modular working stations that can be independently manufactured and assembled. This segmentation allows for simpler, less expensive individual components while achieving high overall productivity through parallel processing of multiple cartridges across different stations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The weighing station automatically identifies underfilled cartridges and triggers rejection mechanisms, eliminating the need for manual inspection. This self-service quality control reduces labor costs and increases production speed without requiring complex additional equipment.

Inventive Principle:
Principle #25Self-service

3Productivity

If conventional manufacturing machines are used for disposable cartridges, then operational reliability is maintained, but productivity remains suboptimal

Engineering Contradiction:
Improvehourly production rateVSAvoidoperational reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The filling station is equipped with a funnel and vibration mechanism that pre-prepares tobacco powder for uniform distribution before the actual filling process. This preliminary action ensures consistent filling quality across all cartridges, maintaining reliability while enabling faster production.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The weighing station provides real-time feedback on cartridge fill weights, automatically identifying underfilled cartridges. This feedback mechanism ensures quality control is maintained throughout high-speed production without requiring manual verification of each cartridge.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3678944B1Manufacturing machine for the production of disposable cartridges for electronic cigarettes
Publication Date: 2021.03.17 GD SPA
  • EP3678944B1 patent drawingFigure 1
  • EP3678944B1 patent drawingFigure 2
  • EP3678944B1 patent drawingFigure 3

AI summary

A manufacturing machine (8) for the production of disposable cartridges (1) for electronic cigarettes; each disposable cartridge (1) comprises a tubular casing (2) which contains a quantity (5) of tobacco overlapped by a pad (6) of filtering material and a sealing ring (7) which is applied and welded to the tubular casing (2). The manufacturing machine (8) has: a first manufacturing drum (9) which supports a plurality of first groups (11) of first seats (12), each adapted to house a corresponding tubular casing (2); a second manufacturing drum (13) which supports a plurality of second groups (15) of second seats (16), each adapted to house a corresponding tubular casing (2); an input unit (17) which feeds the tubular casings (2) in all the first seats (12) of a first group (11) that is standing still in a feeding station (SI); at least one filling unit (18) which feeds the quantities (5) of tobacco into the tubular casings (2) carried by the first seats (12) of a first group (11) that is standing still in a filling station (S2); and a transfer unit (20) which simultaneously transfers all tubular casings (2) from all the first seats (12) of a first group (11) that is standing still in a transfer station (S4) to the corresponding second seats (16) of a second group (15) that is standing still in the transfer station (S4). Each group (11, 15) of seats (12, 16) has a plurality of seats (12, 16) aligned along at least two lines, which are parallel to one another.