Bobbin-Winding Devices TRIZ Cases
- Lower Thread Winding Device with Adjustable Sensor Lever
A lower thread winding device uses a rotatable sensor lever to detect bobbin diameter and stop the motor at a user-defined position.
- Sewing Machine Bobbin Thread Tension Control via Electromagnetic Actuation
Electromagnetic actuation replaces friction to rotate the bobbin and adjust thread tension through magnetic force.
- Sewing Machine Winding Device Damping Element Braking
A sewing machine winding device uses a resilient damping element to absorb kinetic energy during braking.
- Sewing Machine Bobbin Winder Time-Based Thread Amount Detection
A sewing machine bobbin winder calculates thread volume using a time measuring unit and winding amount calculating unit.
- Sewing Machine Bobbin Transport Mechanism
Alternating holding devices pivot to transfer bobbins, eliminating downtime during bobbin changes.
- Sewing Machine Bobbin Case Changer Frame Mounting
Attaching the bobbin case changer to the upper frame unifies thermal expansion, maintaining alignment and improving functional reliability.
- Bobbin Thread End Detection Using Printed Bar Code
Printed bar codes on sewing bobbins enable precise thread end detection, eliminating loose stitch defects caused by inaccurate conventional sensors.
- Bobbin Thread Introduction Device for Automated Sewing Machines
A bobbin thread introduction device automates winding and guiding operations within a sewing machine mechanism.
- Bobbin Thread Monitoring via Multi-State Color Marking
Color marking enables optical detection of oscillating motion to resolve binary monitoring errors.
- Bobbin Holder Assembly Rotation Stability
Segmenting the winding capsule from the housing relaxes dimensional accuracy requirements while maintaining thread tension stability.