Film Roll Height Alignment for Easier Packaging Machine Loading
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Solution Overview
Problem
Mounting a film roll in a bag making and packaging machine is burdensome due to the weight and height alignment requirements, requiring manual labor to lift and position the film roll accurately.
Innovation Solution
A film roll supply device with a holding section, driving unit, and control unit that automatically adjusts the height position of the film roll to align with the machine's supporting shaft, using measuring units and sensors to ensure precise alignment regardless of film roll diameter or size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual lifting and positioning of film roll is used, then device complexity is reduced, but labor burden and installation time increase
Solution Approach 1:
The holding section pre-positions the film roll at the correct height before installation, eliminating the need for manual lifting and alignment by the worker. The driving unit automatically moves the holding section to the precise position where the film roll center aligns with the supporting shaft center, performing the alignment action beforehand.
Solution Approach 2:
The manual mechanical action of lifting and positioning the film roll is replaced by an automated driving unit that uses a holding section to transfer the film roll to the supporting shaft. This substitution eliminates manual labor while maintaining precise positioning capability.
2Manufacturing precision
If automatic height adjustment is implemented, then installation precision is improved, but device complexity increases
Solution Approach 1:
The holding section is equipped with a driving unit that automatically adjusts its own position based on the film roll's weight and dimensions. The system self-regulates to achieve precise alignment without external intervention, with the control unit managing the driving unit's movements to position the holding section at the correct height.
Solution Approach 2:
The system adapts to different film roll parameters (weight, diameter) by adjusting the holding section's position accordingly. The driving unit changes the vertical position parameter of the holding section based on the specific film roll being installed, ensuring precise alignment for varying conditions.
3Productivity
If manual positioning is used, then device complexity is reduced, but installation time increases
Solution Approach 1:
The holding section is pre-positioned at the correct height and location before the film roll installation begins. The driving unit has already moved the holding section to the precise position where alignment is required, so when the film roll is placed, it is already in the correct position, eliminating time-consuming manual adjustment.
Solution Approach 2:
The driving unit continuously adjusts the holding section's position to maintain optimal alignment during the installation process. This continuous automated adjustment ensures that the film roll is consistently positioned correctly without interruption, speeding up the overall installation process compared to manual positioning.
Data Source
AI summary
A film roll replacement device supplies a film roll to a bag making and packaging machine. The film roll replacement device includes a holding section, a driving unit, and a controller. The holding section is at least temporarily located adjacent to a supporting shaft to support the film roll in the bag making and packaging machine, and the holding section holds a first film roll supplied to the bag making and packaging machine. The driving unit moves the holding section in an up-down direction. The controller controls an action of the driving unit to move the holding section to a position where a height position of a center of the first film roll held by the holding section is aligned with the height of a center of the supporting shaft of the bag making and packaging machine.