Capsule Piercing Module With Retained-Position Perforation
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Solution Overview
Problem
Existing beverage production systems face challenges in reliably opening sealed plastic capsules, as conventional piercing means fail to effectively pierce or cut through the plastic, leading to deformation rather than precise opening.
Innovation Solution
A beverage production module with a hollow bell-shaped conformal element and mechanically coupled perforation means that can be actuated to safely retain and open the capsule, ensuring precise perforation and preventing deformation, allowing for reliable injection of liquid into the capsule.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional piercing means are used on plastic capsules, then the piercing action is simple, but the piercing reliability is poor and the capsule wall deforms
Solution Approach 1:
The piercing mechanism is segmented into two distinct functional parts: a piercing element that penetrates the capsule wall and a cutting element that separates the capsule wall. This segmentation allows each element to be optimized for its specific function, improving piercing reliability while maintaining reasonable device complexity.
Solution Approach 2:
The piercing element parameters (geometry, material, motion characteristics) are specifically optimized to pierce plastic capsule walls without causing deformation. The element features a sharp tip with specific angular geometry and uses controlled linear motion at defined speeds to achieve reliable piercing of plastic materials that conventional means cannot penetrate effectively.
2Manufacturing precision
If the piercing means protrudes into the capsule before retention, then the opening action is early, but the capsule position is not defined and piercing precision is poor
Solution Approach 1:
The capsule is first retained and positioned in a defined location by the engagement member before the piercing element is advanced. This preliminary positioning action ensures the capsule is securely held and precisely located, enabling high-precision piercing without requiring additional time for positioning during the piercing operation itself.
Solution Approach 2:
The mechanism uses dynamic sequencing where the engagement member and piercing element move in a coordinated manner. The engagement member first moves to retain the capsule, then the piercing element advances along a predetermined path to pierce at the exact required location. This dynamic coordination achieves high precision while maintaining efficient process timing.
3Ease of operation
If the capsule is retained by engagement members, then the capsule position is defined, but the opening means cannot be actuated to protrude
Solution Approach 1:
The engagement member and piercing element are merged into a single integrated assembly that moves together as one unit. This integration ensures that when the engagement member retains the capsule, the piercing element is automatically positioned and can be reliably actuated to pierce the capsule wall. The combined design eliminates coordination failures between separate components.
Solution Approach 2:
The engagement member acts as an intermediary that first secures the capsule and then facilitates the action of the piercing element. The engagement member's clamping action creates the stable conditions necessary for the piercing element to operate reliably, mediating between capsule retention and the piercing operation.
Data Source
Figure 1a~1c
Figure 2a~2e
Figure 3a~3e
AI summary
A capsule-based beverage production machine comprises a module (2) designed for producing a beverage on the basis of ingredients (5) which are contained in a capsule (1). The module (2) comprises: - means (3, 4) for retaining the capsule (1) in a fixed position, and - means (6) for perforation the capsule (1), wherein the perforation means (6) are controlled to perforate the capsule (1) after the capsule (1) is retained in the fixed position by the retaining means (3, 4).