Grouping Device for Flexible Article Stick Formation
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Solution Overview
Problem
High-performance packaging machines face challenges in forming article sticks with a predetermined number of individually packaged items while ensuring flexibility and avoiding faulty articles, particularly in maintaining efficient and accurate collective packaging.
Innovation Solution
A method and device that utilize a grouping device with independently controllable log stackers and transfer conveyors to form article sticks with variable lengths, allowing for flexible stacking and transfer of only correctly packaged items, synchronized with downstream packaging machines to prevent faulty items from being included.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a continuous rotary transport principle is used for high-performance packaging, then packaging speed is improved (up to 2000 pieces per minute), but flexibility in forming article sticks with variable lengths and sorting out faulty articles is worsened
Solution Approach 1:
The continuous rotary transport system is divided into discrete transport elements (transport means) that can be independently controlled. Each transport element can be individually actuated to release articles, enabling flexible grouping and sorting while maintaining high-speed continuous operation. This segmentation allows the system to handle variable article stick lengths and exclude faulty articles without compromising overall productivity.
2Manufacturing precision
If a fixed number of articles is required in each article stick, then manufacturing consistency is improved, but flexibility to handle faulty articles and variable stacking requirements is worsened
Solution Approach 1:
The system incorporates sensors and control mechanisms that monitor article placement and detect faulty articles. Based on this feedback, the control system can selectively actuate transport means to exclude defective articles from article sticks while maintaining the required number of good articles. This feedback loop enables the system to adapt to variable requirements while preserving manufacturing precision for acceptable articles.
3Adaptability or versatility
If individually controllable transport means are used for each article position, then flexibility in sorting and grouping is improved, but device complexity is worsened
Solution Approach 1:
Multiple transport means are combined into a single integrated rotary transport system with centralized control. Rather than using completely independent mechanisms for each article position, the system merges control functions through a common control unit that can selectively actuate specific transport means. This merging approach reduces overall system complexity while maintaining the flexibility to sort and group articles individually when needed.
Data Source
AI summary
The present invention relates to a method for forming article bars from individual articles, in particular for bar packaging, wherein individual, preferably packaged articles are transferred from a dispensing device to an article bar forming device, in which a predetermined number of individual articles are grouped into an article bar and this article bar is transferred to a transfer device, wherein, depending on the start of the provision of a predetermined, preferably variable number of individual articles and/or on a period of time required to group the predetermined number of individual articles into an article bar, a plurality of article bar forming devices of the article bar forming device are controlled separately and independently of one another for grouping the individual articles into an article bar and for transferring the article bar to the transfer device.The invention further relates to a grouping device.