Transport Wheel Arm Eccentric Mounting for Bag Forming
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Solution Overview
Problem
The existing device for forming double-chamber bags is complex due to the actuation and mounting of arms via a toggle mechanism, requiring numerous components and complicating the kinematics of the arms and profile part.
Innovation Solution
The arms are swivelably mounted eccentrically to the axis of rotation of the transport wheel, with adjacent double-chamber bag forming sets sharing a common swivel axis, and one arm is driven via a cam track while the other is forcedly coupled via toothing, reducing the design effort and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If arms are actuated via a toggle mechanism, then the double-chamber bag can be swivelled to position the bag head tangentially, but the device complexity increases considerably
Solution Approach 1:
Adjacent double-chamber bag forming sets share a common swivel axis, merging the actuation function for multiple arms into a single axis. This reduces the number of separate mounting points and simplifies the overall mechanism while maintaining the ability to position bag heads tangentially.
Solution Approach 2:
The cam track mechanism serves multiple functions: it drives the swiveling motion of arms, controls the timing of arm movement, and positions the double-chamber bags at the correct orientation. This multi-functional approach replaces the complex toggle mechanism while achieving the same operational goals.
2Adaptability or versatility
If each arm is independently mounted on the transport wheel, then individual arm control is achieved, but the design effort and manufacturing complexity increase
Solution Approach 1:
Multiple arms from adjacent forming sets are mounted on a common swivel axis, reducing the number of separate mounting locations on the transport wheel. This merging approach maintains individual arm control capability while significantly reducing design effort and manufacturing complexity.
Solution Approach 2:
The transport wheel is divided into multiple forming sets, each with arms that share common mounting axes. This segmentation allows for modular design where identical components can be reused across different forming sets, reducing overall design effort and facilitating easier manufacturing.
3Ease of operation
If multiple arms are driven independently, then precise control of each arm is achieved, but the number of drive components increases
Solution Approach 1:
The cam track mechanism provides universal control for multiple arms, generating the swiveling motion for all arms in a forming set through a single drive mechanism. This eliminates the need for multiple independent drive components while maintaining precise control over arm movement timing and positioning.
Solution Approach 2:
The cam track acts as an intermediary mechanism that converts rotational motion into the coordinated swiveling motion of multiple arms. This single intermediary component replaces what would otherwise require multiple independent drive mechanisms, reducing overall device complexity while maintaining control precision.
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 significantly simplifies the device design, reduces the number of components needed, and allows for efficient swiveling of the double-chamber bag forming sets, facilitating the formation of double-chamber bags with reduced design effort and operational complexity.
Implementation Method 1
one of the two arms of one of the double-chamber bag forming sets is driven in a swivelling manner via a cam track
Implementation Method 2
the other arm of this double-chamber bag forming set is driven in a swivelling manner in a forcedly coupled manner via a toothing with the one of the arms
Data Source
AI summary
The present invention relates to a device for transporting ready-cut and filled pieces of tube. In order to simplify the structural design of a device for transporting ready-cut and filled pieces of tube within a machine for producing double-chamber bags filled with brewable material, having a transport wheel, which has distributed over its circumference a plurality of double-chamber bag forming sets comprising a leading arm and a trailing arm and a profile part provided therebetween and being radially movable and supporting a bottom of a double-chamber bag, and which is rotatably mounted under a cover arranged in the vicinity of the upper vertex of the transport wheel, the present invention proposes that the arms are swivelably mounted eccentrically to the axis of rotation of the transport wheel and that the arms of adjacent double-chamber bag forming sets are swivelably mounted on a common swivel axis.