Side-by-Side Cigarette Group Forming With U-Folded Reinforcement

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Solution Overview

Problem

Existing technologies for coupling reinforcement elements to groups of smoking articles side by side are complex and hinder high-speed production.

Innovation Solution

A forming unit and method that uses a transport drum, gripping and release heads, and a folding body to precisely couple 'U'-folded reinforcement elements to groups of cigarettes, ensuring accurate positioning and high-speed production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing technologies are used to couple reinforcement elements to groups of smoking articles side by side, then coupling can be achieved, but the system becomes complex and production speed is hindered

Engineering Contradiction:
Improveproduction speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention divides the coupling process into distinct operational phases: feeding reinforcement elements individually to each group, positioning them in separate pockets, and coupling them side by side. This segmentation allows each component and operation to be optimized independently, reducing overall system complexity while maintaining high production speed

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Reinforcement elements are pre-folded into 'U' shapes before being fed to the forming unit. This preliminary preparation simplifies the coupling operation, as the elements are already in the correct configuration for insertion and attachment to the smoking article groups, thereby increasing productivity without adding complexity

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If reinforcement elements are coupled to two groups of smoking articles side by side, then accurate positioning is required, but positioning precision becomes difficult to achieve

Engineering Contradiction:
Improvepositioning accuracyVSAvoidpositioning system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The forming unit incorporates self-positioning mechanisms where the pocket structure and reinforcement element geometry work together to automatically align components during insertion. The 'U' -shaped elements naturally conform to the pocket contours, ensuring accurate positioning without requiring complex external positioning systems

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The design creates equivalent positioning conditions for both reinforcement elements by providing symmetric pocket structures and identical feeding mechanisms for each side. This equipotential approach ensures that both elements achieve the same level of positioning accuracy through identical simple mechanisms, rather than requiring different complex systems for each element

Inventive Principle:
Principle #12Equipotentiality

Data Source

PatentEP4667371A1Forming unit and method to couple two reinforcement elements to two groups of smoking articles side by side
Publication Date: 2025.12.24 GD SPA
  • EP4667371A1 patent drawingFigure 1~2
  • EP4667371A1 patent drawingFigure 3
  • EP4667371A1 patent drawingFigure 4

AI summary

Forming unit (10) and method to couple two reinforcement elements (6) to two groups (5) of smoking articles side by side. The following are provided: a forming conveyor (11) provided with at least one drawer (12) comprising two pockets (13), which are side by side and are each designed to contain a respective group (5) of smoking articles, and two seats (14) which are side by side, are coupled to the respective pockets (13) and are each designed to contain a respective "U"-folded reinforcement element (6); a feeding system (15) configured to insert the two "U"-folded reinforcement elements (6) into the seats (14) of the drawer (12) in a first feeding station (S1); and a hopper (16) configured to insert the two groups (5) of smoking articles side by side into the two pockets (13) of the drawer (12) in a second feeding station (S2).