Coil Transfer Arm Assembly for Precise Winding Station Changeover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current manufacturing processes for lithium-ion battery cells lack full automation in handling coils and cores, particularly when transferring the coil or core, which requires high precision and is challenging with existing automated guided vehicles (AGVs) due to the complexity of precision needed, especially when the receiving device is only supported on one side.
Innovation Solution
A device and method for changing a coil or core with a stationary arrangement opposite a winding station, featuring a support arm and stand that can rotate and move along specific axes, allowing for precise transfer and storage of coils or cores without the need for programmable AGVs, ensuring high reproducibility and automation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated guided vehicles (AGVs) are used to transfer coils or cores, then automation is improved, but manufacturing precision deteriorates due to the high precision requirements and complexity involved
Solution Approach 1:
A transfer device acts as an intermediary between the winding station and storage/processing areas. This dedicated transfer mechanism with support arms and rotation capabilities provides precise coil/ core handling without requiring complex AGV systems, thereby maintaining precision while achieving automation.
Solution Approach 2:
The patent replaces the mechanical AGV system with a stationary transfer device that uses controlled mechanical movements (rotation about vertical axis, displacement along horizontal axis) to achieve precise positioning. This substitution eliminates the navigation and control complexity of AGVs while maintaining automated operation.
2Productivity
If complex automation technology is used for separation and bonding processes, then productivity is improved, but device complexity increases
Solution Approach 1:
The transfer device performs multiple functions: it transfers coils and cores, rotates them into position, positions support arms for receiving or depositing, and facilitates separation and bonding operations. This multi-functionality consolidates what would otherwise require multiple separate complex systems into a single integrated device.
Solution Approach 2:
The device is divided into modular components: a stand with rotation capability, a support arm with displacement capability, and a transfer mechanism. This segmentation allows each component to be optimized independently while maintaining overall system simplicity and ease of maintenance.
3Manufacturing precision
If high precision transfer is required for single-sided supported cores, then manufacturing precision is improved, but ease of operation deteriorates due to the difficulty of handling
Solution Approach 1:
The support arm acts as an intermediary that provides stable support for the core during transfer operations. By positioning the support arm at the appropriate location and providing a stable support surface, the device eliminates the handling difficulties of single-sided supported cores while maintaining precise positioning.
Solution Approach 2:
The transfer device automatically positions and supports the core without requiring manual intervention. The rotation mechanism and displacement unit automatically align the core with the winding station or storage location, making the operation self-sufficient and eliminating the need for skilled manual handling.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a device (1) for changing a coil (2) or a core (3), wherein the coil (2) comprises the sleeve-like core (3) and a film (4) wound thereon; wherein the device (1) is fixedly arranged relative to a winding station (5) at which the film (4) can be unwound from the coil (2) or wound onto the core (3); wherein the device (1) has at least one stand (6) and a support arm (7) movably arranged on the stand (6), the support arm (7) extending along a horizontally extending first axis (8) and wherein the coil (2) or the core (3) can be slidably arranged on the support arm (7) along the first axis (8). The invention further relates to an arrangement and a method for changing a coil or a core.