Capsule Dosing Disc Tamping Ram Pressure Control

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Solution Overview

Problem

Existing devices for dosing powder into capsules lack efficient adjustment mechanisms for process parameters, leading to inaccuracies in dosing weight and filling accuracy.

Innovation Solution

The device incorporates adjustable pressure means and height settings for stuffing punches, along with sensors for product bed height monitoring and automatic control of process parameters, enabling precise adjustment of dosing accuracy and quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual adjustment of tamping punch height and pressure is used, then device complexity is reduced, but dosing accuracy and manufacturing precision deteriorate

Engineering Contradiction:
Improvedosing accuracyVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements individually adjustable tamping punch heights and pressures that can be dynamically modified for each punch. This allows the system to adapt process parameters in real-time to achieve optimal dosing accuracy without requiring complete system redesign, resolving the contradiction between precision and complexity through targeted dynamic adjustment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes physical parameters (height and pressure) of individual tamping punches to optimize dosing accuracy. By allowing independent parameter modification for each punch, the system achieves high manufacturing precision while keeping the adjustment mechanism manageable through localized rather than systemic changes.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If automated control of process parameters is implemented, then dosing accuracy improves, but device complexity and initial setup time increase

Engineering Contradiction:
Improvedosing accuracyVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent incorporates sensors that detect product bed height and provide feedback to the control system. This feedback mechanism enables automated adjustment of tamping punch parameters to maintain dosing accuracy, resolving the contradiction by implementing intelligent control that adapts to actual process conditions rather than relying on fixed predetermined settings.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system automatically adjusts process parameters based on sensor feedback without requiring constant manual intervention. The system serves itself by detecting deviations and making corrective adjustments, reducing the burden on operators while maintaining high dosing accuracy.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If product bed height is not controlled, then device complexity is reduced, but dosing accuracy and weight consistency deteriorate

Engineering Contradiction:
Improveweight consistencyVSAvoidproduct feed control complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent controls the product bed height before the tamping operation occurs. By preparing the product bed to a specific height in advance, the system ensures consistent dosing accuracy without requiring complex real-time adjustments during the tamping process itself.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses sensors to detect product bed height and replaces manual measurement and adjustment methods with automated detection and control, improving weight consistency while managing complexity through technological substitution.

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

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 configuration allows for automatic optimization of process parameters, significantly improving dosing accuracy and reducing manual adjustments, ensuring consistent and precise filling of capsules.

Implementation Method 1

a pressure means for generating a different pressure for each tamping ram, with which the tamping ram springs into the dosing opening

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

at least one sensor is provided for detecting at least one product bed height of the product arranged on the dosing disc

Methodology Applied
Scientific EffectPosition detection: Displacement

Data Source

PatentEP3746028B1Device for dosing a product
Publication Date: 2024.03.06 SYNTEGON TECHNOLOGY GMBH
  • EP3746028B1 patent drawingFigure 1
  • EP3746028B1 patent drawingFigure 2
  • EP3746028B1 patent drawingFigure 3

AI summary

A device for dosing a product in capsules (12) or similar, comprising at least one dosing disc (36) which has dosing openings (38), and at least two filling stations (41-45) with which groups of dosing openings (38) are associated, wherein: each filling station (41-45) comprises at least one tamping pin (51-55); the tamping pin (51-55) can plunge to a specified depth (h1-h5) into the dosing opening (38) to compress the product (17), and said tamping pin has at least one pressure medium (71) for producing a variable pressure (p1-p5) with which each tamping pin (51-55) elastically deflects into the dosing opening (38); and at least one adjusting means, in particular an adjusting drive (61-65), is provided in order to adjust the depth (h1 to h5) for each of the two tamping pins (51-55) independently of one another.