- E-Mobility
- Battery cell | Cell assembly
- Separation
Separation
The dried daughter rolls are unwound and fed to the separation station. This is followed by continuous separation of anode, cathode and separator sheets from the roll material. Depending on the system concept, the individual sheets are stored in a magazine or transferred directly to the next process step.
| System availability | Performance | Quality | |
|---|---|---|---|
| Measuring the foil diameter |  |
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| Condition monitoring on the motor | |
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| Protection of hazardous areas | |
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| Web edge control | |
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| Speed control | |
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| Monitoring cutting geometry | |
Measuring the foil diameter
Exchanging the electrode coil without interruption
An exact measurement of the electrode coil is important to prevent small stops in the production process. The diameter measurement in real time makes it possible to change the roller promptly and leads to improved system availability as well as saving time and money.
Ensuring system availability
Enhancing performance
Solution
Ultrasonic sensors from ifm provide contact-free detection regardless of the colour, transparency or surface qualities of the object. That makes them ideally suited for carrier foils that may be reflective. ifm's photoelectric distance sensors are also excellently well suited for this application.
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Condition monitoring on the motor
Prompt detection of wear on the eccentric press drive
An unexpected failure of the eccentric press motor is associated with machine stoppage and increased costs because it can lead to a loss of production material. A motor that is functioning improperly can also lower the quality of the punched electrodes.
Ensuring system availability
Quality assurance
Solution
Thanks to continuous diagnostics, condition-based maintenance based on actual needs is possible instead of fixed maintenance intervals. This lowers costs. Early detection by means of vibration diagnostics and channel speed monitoring on rolling bearings detects motor damage promptly, making it possible to prevent unplanned downtimes and increase system availability.
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Protection of hazardous areas
Reliably safeguarding the hazardous area
A large number of machines in production represents a potential danger for persons who are working in the area. With safety light curtains from ifm, you can reliably protect your employees and your production material. An invisible protection field is generated by means of infrared beams. If an infrared light beam is interrupted, a shutdown command is immediately and reliably triggered.
Ensuring system availability
Enhancing performance
Solution
OY series safety light curtains are used to safeguard hazardous areas and protect personnel. Depending on the protected area height and number of beams, the units can be adjusted to protect hands or an entire person. Thanks to their slim design, they are suited for applications with limited mounting space.
Safety light curtains are optoelectronic safety devices consisting of one transmitter and one receiver. They conform to the safety requirements of type 4 / SIL 3.
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Web edge control
Continuous control of quality in the stamping process
An efficient stamping process requires precise control of the web edge so that the offset is as slight as possible, preferably with none at all. The web edge is continuously scanned optically for this purpose. Precise control reduces rejects and lowers your costs.
Enhancing performance
Quality assurance
Solutions
To control the web edge, ifm offers optical object detection sensors and profile sensors. The O2D in combination with the matching software ensures especially precise measurements.
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Speed control
Controlling the speed of supply reliably
Calculating and controlling the roller speed are essential for flexible and efficient adaptation of production. This also ensures that the punch is adapted to the speed of the electrode foil and that no cutting waste is produced.
Enhancing performance
Quality assurance
Solution
ifm's rotational speed encoder based on the magnetic sensing principle provides the accuracy of photoelectric encoders and the robustness of magnetic systems. Performance Line encoders have an integrated signal evaluation for speed monitoring, counter functions and detection of the direction of rotation. With IO-Link you are ready for Industry 4.0 and able to transfer diagnostic and parametrisation data reliably.
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Monitoring cutting geometry
Ensuring an even cutting edge
Sharp and uneven edges due to dull cutting devices or damaged motors can significantly lower the quality of the cells and cause a high level of rejects. This can be prevented by checking the cutting geometry.
Quality assurance
Solution
Faulty cutting processes can be detected at an early stage with the object detection sensor from ifm. In combination with the matching software, the O2D offers precise object detection and inspection by means of a blob analysis.