Coupling Unit for Inserting Hygroscopic Pad in E-Cigarette Cartridge Base
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Solution Overview
Problem
The existing methods for inserting a support fitted with a hygroscopic pad into a base during the manufacture of disposable electronic cigarette cartridges often result in incomplete insertion, leading to faulty cartridges due to a protruding pad, which reduces productivity and requires inefficient slow operation to minimize defects.
Innovation Solution
A unit and method utilizing a coupling unit with a pneumatic suction device and compression device to ensure complete insertion of the hygroscopic pad into the base, using a rotating drum conveyor system and clamshell gripping heads to facilitate radial compression and axial insertion, ensuring the pad is fully enclosed without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hygroscopic pad is compressed radially using a flared gripping head to facilitate insertion into the base, then the ease of insertion is improved, but the productivity deteriorates due to the need for very slow operation to minimize defective cartridges
Solution Approach 1:
The hygroscopic pad is pre-compressed radially within the gripping head before insertion, and a pusher is pre-positioned to apply axial force. This preliminary preparation ensures that when insertion occurs, both radial compression and axial pushing are already in place, enabling complete insertion at higher speeds without risking defective cartridges.
Solution Approach 2:
A pusher element is introduced as an intermediary component between the gripping head and the hygroscopic pad. The pusher applies controlled axial force to ensure complete insertion of the pad into the base, while the gripping head provides radial compression. This intermediary mechanism allows for reliable insertion without requiring excessively slow operation.
2Manufacturing precision
If the hygroscopic pad is inserted slowly to minimize defective cartridges with protruding pads, then the manufacturing precision is improved, but the productivity deteriorates due to reduced hourly output
Solution Approach 1:
The pusher acts as an intermediary that applies controlled axial force to the hygroscopic pad during insertion. This ensures complete insertion into the base with consistent precision, eliminating protruding pads and defective cartridges. The controlled pushing action maintains high manufacturing precision while enabling faster production speeds.
Solution Approach 2:
A suction device using pneumatic principles is employed to securely hold the hygroscopic pad during the insertion process. The suction ensures the pad remains properly positioned and prevents protrusion, maintaining consistent insertion completeness. This pneumatic control allows for reliable precision without requiring excessively slow operation speeds.
3Ease of operation
If the gripping head has a flared shape to compress the hygroscopic pad radially, then the ease of insertion is improved, but the device complexity increases
Solution Approach 1:
The insertion system is divided into distinct functional segments: the gripping head with flared shape for radial compression, the pusher for axial insertion, and the suction device for secure holding. This segmentation allows each component to perform its specific function efficiently, maintaining ease of insertion while organizing complexity into manageable, independent elements.
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
This solution enables high productivity with precise and gentle handling of components, ensuring the hygroscopic pad is fully inserted, preventing protrusions and maintaining cartridge integrity, thus enhancing production efficiency and quality.
Implementation Method 1
a suction device 28, which causes suction acting inside the base 5
Implementation Method 2
a compression device 32, which radially compresses the hygroscopic pad 14 folded into a tube so as to enable entering the same into the base 5 without damage
Data Source
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AI summary
A coupling unit (25) and method for inserting a support (4) fitted with a hygroscopic pad (14) in a base (5) during the manufacture of a disposable cartridge (3) for an electronic cigarette (1); are provided: a first seat (19) that accepts the support (4) fitted with the hygroscopic pad (14); a second seat (22) that accepts the base (5) and can be axially aligned with the first seat (19); a transfer device that inserts the support (4) fitted with the hygroscopic pad (14) in the base (5) by applying a relative axial movement between the support (4) fitted with the hygroscopic pad (14) and the base (5); and a suction device (28), which is coupled to a first end (29) of the base (5) opposite to a second end (30) of the base (5) through which the support (4) fitted with the hygroscopic pad (14) enters, and causes suction that acts inside the base (5).