Capsule filling machines may experience issues such as unstable vibration, improper capsule positioning, capsule shell blockage, and component wear during operation. Most problems can be addressed by checking the electrical supply, mechanical fasteners, guide components, and capsule shell condition.
1. Unstable Vibration
Possible cause: The equipment may not be operating under the required voltage, resulting in unstable vibration.
Maintenance method: Check the power supply and adjust the voltage as necessary. Ensure that the machine operates within its specified rated voltage range.
2. Loose Reed Screws
Possible cause: Vibration during operation may cause the reed screws to loosen.
Maintenance method: Inspect the reed assembly regularly and tighten loose screws to maintain the stability of the vibration mechanism.
3. Incorrect Capsule Shell Position
Possible cause: Improper positioning of the misalignment plate or guide rail can prevent capsule shells from being correctly positioned on the working plate.
Maintenance method: Adjust the height of the misalignment plate and check the guide-rail installation. Make sure the capsule shells are correctly positioned in the working plate holes and that the capsule-mouth height is appropriate.
Hansheng Automation can also provide custom machining for guide plates, positioning components, bushings, and other precision mechanical parts according to customer drawings, helping maintain accurate assembly and positioning.
4. Excessive Capsule Shell Inversion
Possible cause: Excessive vibration or inconsistent capsule shell dimensions may cause too many shells to turn over during sorting.
Maintenance method: Adjust the vibrator voltage to an appropriate level and check whether the capsule shells meet the required specifications. Replace unsuitable shells when necessary.
5. Capsule Shells Stuck on the Working Plate
Possible cause: Deformed capsule shells, improper alignment between the misalignment plate and working plate, or dimensional deviations may prevent the shells from dropping correctly.
Maintenance method: Replace defective capsule shells and readjust the position of the misalignment plate and working plate holes. Confirm that the capsule shells can pass through the holes smoothly.
6. Mold Unable to Return Along the Track
Possible cause: A displaced spring or ejector rod may prevent the mold from returning to its normal position. Foreign material or a stuck capsule may also obstruct movement.
Maintenance method: Reinstall or adjust the spring and ejector rod as required. Use the appropriate push tool to remove any stuck capsule shell and restore normal mold movement.
7. Excessive Guide Plate Wear
Possible cause: Long-term operation may cause wear of the guide plate, while loose positioning pins can further reduce positioning accuracy.
Maintenance method: Replace severely worn guide plates and inspect the positioning pins. Tighten any loose fasteners and check the capsule shells for deformation or moisture absorption.
8. Preventive Maintenance
Regular inspection can reduce unexpected downtime and extend the service life of the machine. Operators should periodically check the vibration system, fasteners, guide rails, working plates, molds, positioning components, and other wear parts.
For precision components that require replacement or modification, we support drawing-based custom machining and can manufacture non-standard parts such as guide plates, shafts, bushings, positioning pins, and brackets according to customer specifications.
In practice, troubleshooting should begin with the simplest factors-power supply, fasteners, capsule shell condition, and positioning-before moving to component replacement or mechanical adjustment. The specific maintenance procedure and adjustment values should follow the machine manufacturer's technical documentation.
