Segmented Distributor Members for Tablet Packaging

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Solution Overview

Problem

Conventional packaging machines with distributor discs face inefficiencies when handling high-width translatable strips with multiple rows of blisters, as the tangential speed differences between the disc's center and periphery lead to uneven distribution and reduced productivity.

Innovation Solution

A packaging machine equipped with a distribution apparatus featuring a pair of separate, rotatable distributor members with concentric discs or annular elements, allowing for synchronized and uniform distribution of tablets across multiple sectors of a translatable strip, with adjustable rotation speeds and vibration capabilities to ensure effective positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single large-diameter distributor disc is used to handle high-width translatable strips with multiple rows of blisters, then the machine can process more rows of blisters, but the tangential speed difference between the center and periphery of the disc increases, leading to uneven distribution and reduced productivity

Engineering Contradiction:
Improvenumber of rows of blisters processedVSAvoiduniformity of tablet distribution
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The distributor disc is divided into multiple independent distributor members (e.g., two or more) that operate separately. Each distributor member is responsible for distributing tablets to a specific row of blisters, thereby eliminating the tangential speed difference problem that occurs in single large-diameter discs. This segmentation allows each smaller distributor member to maintain uniform rotational speed across its surface while collectively handling multiple rows of blisters.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the tangential speed of the distributor disc is increased to improve productivity, then more tablets can be distributed per unit time, but the wear on tablets increases and distribution precision deteriorates

Engineering Contradiction:
Improvetablet distribution speedVSAvoidtablet wear
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

By segmenting the distributor into multiple independent members, each operating at optimized speeds, the system can achieve high overall productivity without subjecting individual tablets to excessive speeds. Each distributor member operates at a moderate tangential speed that minimizes tablet wear while maintaining efficient distribution.

Inventive Principle:
Principle #1Segmentation

3Productivity

If a large-diameter distributor disc is used to accommodate multiple rows of blisters, then the machine width increases, but the machine bulk and complexity increase

Engineering Contradiction:
Improvemulti-row processing capabilityVSAvoidmachine bulk
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The distributor is segmented into multiple smaller independent members arranged in a compact configuration, allowing the machine to process multiple rows of blisters without requiring a single large-diameter disc. This segmentation enables a more compact overall machine design while maintaining multi-row processing capability.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3554951B1Packaging machine and the related method
Publication Date: 2021.05.12 IMA IND MASCH AUTOMATICHE SPA
  • EP3554951B1 patent drawingFigure 1
  • EP3554951B1 patent drawingFigure 2
  • EP3554951B1 patent drawingFigure 3

AI summary

Packaging machine, comprising a distribution apparatus able to transfer and position tablets or suchlike in organized blisters (15) of at least a translatable strip (16); the apparatus (10) comprises at least a pair of separate distributor members (12, 13), rotatable and provided with holes (20) configured to present themselves on each occasion in correspondence with the blisters (15) of the strip (16), in order to transfer and position the tablets or suchlike in the blisters (15) of corresponding zones or sectors (SI, S2) of the strip (16), separate from each other.