Film Supplying Device Movable Roll Support
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Solution Overview
Problem
The existing film supplying device for horizontal package making and filling machines requires significant operator skill and force to set the film, leading to inefficiencies and potential damage, especially when passing the film through narrow openings, affecting production efficiency.
Innovation Solution
A film supplying device with a second support member that can move between a sandwiched and retract position to facilitate easier film setting, allowing for greater separation of rolls and reducing the need for delicate operations, while also preventing foreign matter entry and ensuring the film remains on the drive side rotation member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an eccentric mechanism is used to separate rolls for film setting, then the rolls can be separated to allow film passage, but the separation width is narrow requiring delicate operations that reduce efficiency
Solution Approach 1:
The patent applies the dynamics principle by making the support member movable between a sandwiched position (where rolls are close for operation) and a retract position (where rolls are separated for film setting). This dynamic positioning allows the system to adapt between operational modes, enabling wide separation when needed for film handling while maintaining close positioning during normal operation, thereby eliminating the narrow separation limitation of fixed eccentric mechanisms.
2Force
If rolls are kept close together, then film drawing force is sufficient, but film setting operation becomes difficult requiring high operator skill
Solution Approach 1:
The movable support member enables dynamic adjustment of roll separation, allowing the system to provide sufficient film drawing force when rolls are in the sandwiched position while enabling easy film setting operation when the support member is moved to the retract position providing wide separation.
3Productivity
If operator skill varies, then film setting time varies, but consistent production efficiency is required
Solution Approach 1:
The movable support member design enables self-service operation where the mechanism itself facilitates easy film passage through wide separation, reducing dependence on operator skill. The mechanical advantage provided by the movable support makes film setting inherently easier, allowing operators of varying skill levels to perform the task efficiently and consistently.
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
Enhances operability and production efficiency by simplifying the film setting process, reducing variability based on operator skill, and preventing film damage, thus improving overall packaging operations.
Implementation Method 1
the second support member that supports the drive side rotation member is movable between a sandwiched position in which the driven side rotation member approaches the drive side rotation member
Data Source
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AI summary
In a film supplying device in a package machine, a film 12 drawn out from a film roll is fed downstream between a drive roll 32 and a driven roll 34. The drive roll 32 is rotatably supported by a first support 38 fixed to a main frame 26. A second support 56 for rotatably supporting the driven roll 34 is supported on the main frame 26 so as to be rotatable. The second support 56 is movable between a sandwiched position where the driven roll 34 approaches the drive roll 32 to be aligned therewith to hold the film 12 therebetween, and a retract position in which the driven roll 34 is spaced apart from the drive roll 32.