Capsule Grouping Rotary Unit for Head-Tail Alignment

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Solution Overview

Problem

Existing machines for packaging capsules in multi-capsule packages face challenges in high productivity and excessive rejects due to unsuitable quality characteristics, where a single defective capsule often leads to the rejection of an entire group, and synchronizing the movement of capsules is difficult.

Innovation Solution

A machine and method that utilize two rotary units and conveyor systems to independently rotate and align capsules in a head-tail configuration, allowing for alternating capsule orientation and independent speed control to reduce rejects and maintain high productivity, even with defective capsules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single defective capsule is rejected, then quality control is improved, but the entire group of capsules is rejected causing excessive waste

Engineering Contradiction:
Improvequality controlVSAvoidcapsule waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The system segments the capsule handling process into independent rotational units, each capable of processing capsules individually. This allows defective capsules to be identified and rejected without forcing rejection of adjacent capsules, thus improving quality control while reducing waste.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention applies local quality control by enabling independent inspection and rejection of individual capsules rather than treating the entire group uniformly. Each capsule can be evaluated and handled based on its own quality characteristics, preventing unnecessary rejection of good capsules due to a single defect.

Inventive Principle:
Principle #3Local quality

2Productivity

If capsule movement means are actuated continuously, then productivity is improved, but synchronization becomes difficult when restarting

Engineering Contradiction:
Improvepackaging speedVSAvoidsynchronization complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system employs dynamic actuation where the rotational movement of capsule handling means can be continuously adjusted. The means can be accelerated or decelerated independently to facilitate synchronized restarting without halting productivity, allowing flexible adaptation to operational requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention utilizes periodic rotational action of the capsule handling means, where each rotational cycle can be independently controlled. This periodic motion allows for synchronized restarting at appropriate phases, maintaining continuous productivity while managing synchronization complexity through rhythmic, predictable cycles.

Inventive Principle:
Principle #19Periodic action

3Quantity of substance

If capsules are positioned in head-tail orientation to save space, then packaging efficiency is improved, but alignment precision becomes more difficult

Engineering Contradiction:
Improvecapsules per packageVSAvoidalignment precision
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The system performs preliminary alignment of capsules in the desired head-tail orientation before they are grouped and packaged. This pre-positioning ensures that capsules are correctly oriented in advance, making the subsequent grouping process simpler and maintaining high alignment precision while achieving space-efficient packaging.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention replaces complex mechanical alignment mechanisms with a controlled rotational system that automatically orients capsules in the correct head-tail configuration. This substitution simplifies the alignment process while maintaining precision through controlled rotational movement rather than complex mechanical positioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3433175B1Unit and method for grouping together and aligning capsules
Publication Date: 2020.05.13 IMA IND MASCH AUTOMATICHE SPA
  • EP3433175B1 patent drawingFigure 1~2
  • EP3433175B1 patent drawingFigure 3
  • EP3433175B1 patent drawingFigure 4

AI summary

Described is a unit (1) for grouping together and aligning capsules (2) for extraction or infusion products comprising a first rotary unit (6) equipped with first seats (S1) for receiving capsules (2) designed to receive respective capsules (2) from a transport element (4) of a machine (100) for forming capsules (2); a second rotary unit (7) operating in conjunction with the first rotary unit (6) to receive from the latter, in a predetermined transfer region (R2), capsules (2) and equipped with a first rotary element (7A) equipped with respective second seats (S2) receiving capsules (2) and a second rotary element (7B) equipped with respective third seats (S3) for receiving capsules (2), with the first and second rotary elements (7A, 7B) which can be rotated independently in the same direction (W) of rotation for picking up, alternately and in succession, capsules (2) from the first rotary unit (6).