Pivotably Mounted Deposit Head for Sliver Can Exchange
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Solution Overview
Problem
Existing can changers in spinning preparation plants face challenges such as slow can changing due to the need to reduce deposition speed, fiber material conveyance issues, inconsistent can structures, customer-specific adaptations, and overloading, which lead to friction, sliver loss, and restricted accessibility.
Innovation Solution
A pivotably mounted depositing head supported by multiple supports allows for friction-free can changing, enabling quick and automatic can exchange with full accessibility from three sides, using a pneumatic drive and adjustable stops for various can sizes and heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the depositing speed is reduced to enable round cans to be moved and change positions, then the cans can be changed without fiber material being conveyed between them, but the card production is significantly reduced and can changing becomes slow
Solution Approach 1:
The depositing head is made movable instead of stationary, allowing it to dynamically follow the cans during their circular motion. This dynamic positioning enables the cans to move at normal speed while the depositing head maintains its position relative to the cans, resolving the contradiction between ease of operation and productivity
Solution Approach 2:
The depositing head moves in a circular path around the cans rather than in a linear fashion. This dimensional change in motion trajectory allows simultaneous can movement and deposition without fiber conveyance issues, maintaining both operational ease and productivity
2Productivity
If the round cans are changed quickly to maintain card production, then productivity is improved, but fiber material is conveyed between the round cans and the can structure may be damaged
Solution Approach 1:
The depositing head dynamically tracks the cans in their circular motion path, allowing quick can changes without reducing deposition speed. This eliminates the need to slow down for can changes while preventing fiber material from being conveyed between cans, thus maintaining both productivity and can structure integrity
Solution Approach 2:
The movable depositing head acts as an intermediary that adapts to the can motion rather than forcing the cans to adapt to a stationary position. This intermediary mechanism enables smooth, quick can changes without damaging the can structure or conveying fiber material
3Device complexity
If the turntable remains permanently stationary to simplify the design, then device complexity is reduced, but the cans cannot be changed quickly and fiber material is conveyed between cans
Solution Approach 1:
The turntable is transformed from a stationary component to a dynamically moving component that rotates along with the cans. This dynamic design enables quick can changes without increasing overall system complexity, as the motion is integrated into the existing circular can path
Solution Approach 2:
The turntable motion is merged with the can circular motion path, so that the turntable rotates in sync with the cans. This merging eliminates the need for separate complex positioning mechanisms while enabling fast can changes and preventing fiber conveyance between cans
4Reliability
If the depositing head is stationary to reduce wear and sensitivity to dirt, then reliability is improved, but the cans cannot be accessed from all sides and flexibility is reduced
Solution Approach 1:
The depositing head is made dynamically movable along a circular path around the cans, allowing it to service multiple cans in sequence. This dynamic positioning provides flexibility for can access from different positions while the head itself experiences reduced wear compared to linear往复 motion
Solution Approach 2:
The depositing head moves in a circular dimension around the cans rather than in a linear back-and-forth motion. This dimensional change provides versatile access to cans from multiple sides while reducing mechanical wear through smoother continuous motion
Data Source
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AI summary
The present invention relates to a device for filling a can with a sliver produced in a spinning preparation installation, e.g. a drawing frame, carding machine or combing machine. The device is suitable to receive an empty and a full can at the same time, and comprises a depositing head (13) with a rotary plate (14). According to the invention, the depositing head (13) is pivotally mounted.