Rotary Pressing Elements for Segment Axial Alignment
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Solution Overview
Problem
Current devices for manufacturing multi-segment rod-like articles, particularly in the tobacco industry, face challenges in ensuring axial alignment of segments on a conveyor belt, leading to misaligned positioning and defective connections, especially with thin-walled tube segments, which affects the quality and efficiency of the manufacturing process.
Innovation Solution
The device employs rotary pressing elements with cylindrical and concave surfaces to correctly position segments on the conveyor belt, ensuring axial alignment by guiding and pressing segments onto the wrapper, using multiple rotary pressing elements in combination to maintain stability and continuity of the rod formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If segments are placed on the conveyor belt by feeding wheels, then the manufacturing process is simple and efficient, but the axial alignment of segments deteriorates leading to misaligned positioning
Solution Approach 1:
A guide channel is introduced as an intermediary element between the feeding wheel and the conveyor belt. This guide channel receives segments from the feeding wheel and guides them into the correct axial position on the conveyor belt, mediating the transfer process to achieve both efficiency and precision
Solution Approach 2:
The guide channel is designed to automatically guide segments into correct alignment through its geometric shape and positioning, without requiring additional active control mechanisms or manual intervention. The structure itself provides the alignment function through its design
2Adaptability or versatility
If thin-walled tube segments are used, then the product design flexibility is improved, but the positioning accuracy deteriorates due to misaligned front surfaces
Solution Approach 1:
The guide channel acts as a mediator that receives thin-walled tube segments from the feeding wheel and guides them into precise axial alignment on the conveyor belt, ensuring that even delicate thin-walled segments are positioned accurately without damage or misalignment
Solution Approach 2:
The guide channel is designed with specific geometric parameters (width, depth, angle) that are optimized for the dimensions of thin-walled tube segments, allowing precise positioning while accommodating the unique characteristics of these delicate components
Data Source
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AI summary
A device for manufacturing multi-segment rod-like articles (R), the device comprising: a feeding unit (5) for feeding a train of segments (S1, S2, S3), the feeding unit (5) comprising a feeding wheel (8), a transporter (9) for transporting a wrapper (10) having a form of a tape and the segments (S1, S2, S3) on the belt (13) along a guide (14) provided with an inlet part (14-I), a forming unit (11) for forming a continuous rod (CR) from the segments (S1, S2, S3), a cutting head (12) for cutting the continuous rod (CR) into individual multi- segment rod-like articles (R), wherein the feeding wheel (8) is located above the inlet part (14-I) of the guide (14). At least one rotary pressing element (21, 23, 27, 32) having a peripheral pressing surface (22, 24, 30, 31, 35, 36) is positioned above the inlet part (14-I) of the guide (14) and before the forming unit (11), downstream the feeding wheel (8) in a direction of movement of the belt (13), the rotary pressing element (21, 23, 27, 32) being configured to adjust axial alignment of segments (S1, S2, S3).