Spinning Can Changer with Movable Driver and Stop
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Solution Overview
Problem
Existing can changers for spinning preparation machines, such as drawframes and carding machines, face challenges in efficiently shifting filled and empty sliver cans while minimizing space requirements, as they often require significant movement and additional space to avoid collisions during the can changing process.
Innovation Solution
A can changer design featuring a first and second carrier with pivotable drivers on a movably guided support structure, utilizing a stop to limit the first driver's movement and ensure it pivots relative to the structure, allowing for efficient shifting of sliver cans without excessive space usage, with the second driver able to pivot around the filled can during return, thus minimizing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the can changer uses a support structure with multiple drivers to move spinning cans from waiting position to filling position, then the can changing efficiency is improved, but the space required for the device increases
Solution Approach 1:
The support structure is designed to be movable along the transport direction, allowing the first and second drivers to dynamically adjust their positions. This dynamic configuration enables the drivers to cooperate efficiently in moving cans while minimizing the overall space footprint of the can changer, resolving the contradiction between high productivity and compact space requirements
Solution Approach 2:
The first driver and second driver are mounted on the same movable support structure, creating a nested arrangement where multiple functional elements are integrated into a single compact unit. This nesting allows the can changer to perform multiple operations (moving empty cans to filling position and removing filled cans) within a limited space, achieving both high efficiency and compact design
2Reliability
If the first driver is made movable relative to the support structure to avoid collisions during can changing, then the reliability of the can changing process is improved, but the device complexity increases
Solution Approach 1:
The first driver is designed with movable mounting on the support structure, allowing it to dynamically adjust its position relative to the support during the can changing cycle. This dynamic capability enables the first driver to avoid collisions with filled cans while maintaining reliable operation, with the added benefit that the movement mechanism is integrated into the existing movable support structure rather than requiring separate complex positioning systems
Data Source
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AI summary
The invention relates to a can changer (1) for a spinning preparation machine, wherein the can changer (1) comprises at least a first driver (3) and a second driver (5) positioned upstream of the first driver (3) in a predetermined transport direction (T) of the spinning cans (8), wherein the first driver (3) and the second driver (5) are mounted on a movably guided support structure (6) of the can changer (1), wherein the support structure (6) together with the first driver (3) and the second driver (5) can be moved by means of a drive (7) in the said transport direction (T) from a first position to a second position and from there back to the first position, wherein the drivers (3;5) are designed to be able to move a spinning can (8) in the transport direction (T) during the movement from the first position to the second position, and wherein at least the first driver (3) is movably mounted on the support structure (6) such that it is movable relative to the support structure (6) starting from a basic position. According to the invention, it is provided that at least the first driver (3) is initially movable from its second position against the transport direction (T) into a third position, wherein the can changer (1) includes a stop (9) which is positioned such that the first driver (3) comes into contact with the stop (9) during its movement into the third position and is thereby moved relative to the support structure (6).