Rod Feed System Pressure Member for Automatic Hopper Emptying

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Solution Overview

Problem

Existing feed systems for rods in production lines, such as those used in cigarette production, require manual emptying of the hopper as the pick-up roller cannot retrieve all rods, leaving residual amounts.

Innovation Solution

A feed system equipped with a pressure member that presses the rods against the pick-up roller, combined with a control unit to manage the pressure and ensure complete hopper emptying, allows for automatic and complete emptying of the hopper.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual emptying of the hopper is performed, then complete emptying can be achieved, but operational efficiency is reduced and manual intervention is required

Engineering Contradiction:
Improveautomatic emptying capabilityVSAvoidmanual emptying requirement
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The pressure member automatically presses rods against the pick-up roller when the roller becomes empty or nearly empty, enabling the system to empty itself without manual intervention. The control unit detects rod levels and activates the pressure member autonomously, making the system self-servicing.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical emptying operations with an automated system comprising a control unit and pressure member. The control unit detects when the pick-up roller is empty and activates the pressure member to complete the emptying process, substituting human operation with automated control.

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

2Productivity

If the pick-up roller operates without pressure assistance, then the system is simpler, but complete emptying of the hopper is not achieved

Engineering Contradiction:
Improvehopper emptying completenessVSAvoidsystem structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The pressure member is pre-positioned and ready to act on rods before the pick-up roller becomes completely empty. The control unit anticipates the need for pressure assistance by monitoring rod levels and activating the pressure member in advance to ensure complete emptying.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the pressure parameter applied to rods based on operational needs. The pressure member applies variable force to press rods against the pick-up roller, with the control unit adjusting activation timing to optimize emptying completeness while managing system complexity.

Inventive Principle:
Principle #35Parameter changes

3Extent of automation

If a pressure member is added to press rods against the pick-up roller, then complete automatic emptying is achieved, but device complexity increases

Engineering Contradiction:
Improveautomatic hopper emptyingVSAvoidadditional pressure member and control unit
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The pressure member serves multiple functions: it presses rods onto the pick-up roller during normal operation to ensure reliable pickup, and it forces remaining rods onto the roller during emptying operations. The control unit integrates with the existing system architecture, making the added components serve universal purposes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

The system achieves automatic and complete emptying of the hopper, enabling efficient format changes and maintenance operations without manual intervention.

Implementation Method 1

a pressure member (20) configured for pressing the rods contained in the container (4) against the pick-up roller (6)

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP4533964A1Feed system for feeding rods to a production line for the manufacture of articles
Publication Date: 2025.04.09 GD SPA
  • EP4533964A1 patent drawingFigure 1~2
  • EP4533964A1 patent drawing
  • EP4533964A1 patent drawing

AI summary

Described herein is a feed system (10) for feeding rods to a production line for the manufacture of articles, in particular rods for the production of smoking articles, comprising: - a hopper (2) comprising a container (4) for receiving a load of rods and provided with a bottom opening (4A); and - a pick-up roller (6) rotatably mounted underneath said container (4) so that it is partially inserted in said container (4) through said bottom opening (4A). The system is characterized in that it further comprises a pressure member (20) configured for pressing the rods contained in said container (4) against said pick-up roller (6).