Electrode Sheet Lifting with Staged Suction for Wrinkle-Free Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for adsorbing and lifting sheet-shaped members, such as electrode sheets, face issues with deformation, damage, adsorption failure, and wrinkles due to face-to-face contact and curvature, particularly when using suction plates.
Innovation Solution
A lifting device with a main suction plate for central contact and sub suction plates for edge contact, along with a lifting unit that raises the sub suction plates before the main suction plate, and a posture control unit to adjust to curvature, combined with a flattening unit to ensure accurate and damage-free lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adsorption force of the suction plate is increased to prevent dropping, then the sheet-shaped member can be held more securely, but deformation or damage to the sheet-shaped member occurs
Solution Approach 1:
The suction plate is divided into multiple suction units with different suction forces. The first suction unit applies a first suction force to a first region of the sheet-shaped member, while the second suction unit applies a second suction force to a second region. This segmentation allows different parts of the sheet to experience different suction forces, preventing deformation while maintaining reliable adsorption.
Solution Approach 2:
Different regions of the sheet-shaped member are subjected to different suction forces based on their specific requirements. The first region receives a first suction force optimized for its characteristics, while the second region receives a second suction force optimized for its characteristics. This local quality approach ensures that each region is adsorbed appropriately without causing deformation or damage.
2Reliability
If the suction plate is brought into close contact with the curved edge portion to adsorb the sheet-shaped member, then adsorption can be achieved, but wrinkles are caused or adsorption fails due to separation
Solution Approach 1:
The suction plate is segmented into multiple suction units positioned at different locations. The first suction unit is positioned to adsorb a first region (such as the curved edge portion), while the second suction unit is positioned to adsorb a second region. This segmentation allows each suction unit to independently adapt to the local geometry of the sheet-shaped member, preventing wrinkles while maintaining reliable adsorption even on curved surfaces.
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
Accurate adsorption and lifting of sheet-shaped members without deformation or damage, even with curved edges, ensuring reliable transfer and adaptability to various sizes and shapes.
Implementation Method 1
a suction unit (110) that adsorbs a sheet-shaped member (S)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is a lifting device and an electrode sheet transfer apparatus using the same. The lifting device according to an embodiment of the present disclosure is a device for lifting a sheet-shaped member, and includes a main suction plate configured to make surface contact with a central portion of the sheet-shaped member and adsorb the central portion; a sub suction plate configured to make surface contact with an edge portion of the sheet-shaped member located outside the central portion and adsorb the edge portion; and a lifting unit connected to the main suction plate and the sub suction plate respectively to raise or lower the main suction plate and the sub suction plate, wherein the lifting unit is configured to lift the main suction plate and the sub suction plate when the main suction plate and the sub suction plate adsorb the sheet-shaped member, so that the sub suction plate is raised before the main suction plate.