Understanding capsule filling machine parts is essential to ensure flawless working and longevity. In line with that, this article explores the components of automated fillers. These are the most used today, with applications in small to medium and large-scale businesses.
What is a Capsule Filling Machine Made of?
A capsule filling machine comprises parts that make filling the required material possible. It also includes automation components that increase speed and accuracy, among other benefits.
Depending on its type, the filler can have a few or many parts and sections. For instance, manual fillers are simple, table-top devices. Automatic versions are more complex, with hundreds of components.
Some parts, such as sorters and polishers, are usually optional. Only advanced automatic filling machines come with them. Below, we look at the construction of a typical filling device.
Parts of a Capsule Filling Machine
The following capsule filling machine components are the most critical. They represent the entire filling system, from the beginning to the final capsule ejection step.
1. Capsule Hopper
The hopper is the cylindrical, conical, or wedge-shaped reservoir where filing starts. It holds empty capsules before letting them move down the outlet to the rectifier unit for orientation.
The hopper is also usually stainless steel for hygiene and other reasons, such as durability. It may vibrate or use an auger to agitate the capsules, ensuring their proper flow down the exit opening.
Automated fillers incorporate level sensors in the hopper. These detect the amount of capsules, triggering their loading when too low. That, in turn, ensures the filling process occurs independently.
2. Capsule Orientation and Separation Unit
This part corrects the capsules, causing them to enter the dosing and filling unit with the body down. It typically consists of channels and fingers. These guide the locked shells to change their direction.
The separation unit removes the caps from the bodies, prepping them for filling. It uses vacuum pressure to avoid damaging the delicate shells.
3. Powder Hopper
The powder hopper holds the fill material. It then delivers the material, such as powder or granules, down the dosing system for deposition into the capsules.
Its design can vary from cylindrical to wedge and cone shape. The hopper may also vibrate or utilize an auger screw to send the fill material down the dosing unit.
The hopper also uses level sensors to control its loading from the feeder. These detect high and low levels. The control system uses this data to self-regulate the powder level.
4. Dosing System and Filling Unit
The dosing unit measures the material you need to fill empty capsules, ensuring precise dosing. High precision is essential, especially when making pharma products. The dosing mechanism uses a tamping finger or dosing disc.
The filling unit is the part that directly sends the powder or other material into the capsules. Its mechanism or working principle depends on the machine type. Some are linear, while some are rotary units.
5. Capsule Sealing Mechanism
This part has a capsule closing mechanism to lock the caps to the bodies, preventing them from popping open. It typically aligns the two halves before pushing them together and sealing their joints.
Sealing methods vary, depending on the capsule type and sealing requirements. Options include using a gelatin solution and welding the two halves with heat.
6. Capsule Ejector and Sorter
After filling, the election mechanism removes the capsules from the machine’s main production line. The capsules undergo several other processes, such as sorting and polishing.
The sorter may or may not be a part of the filling machine. It automatically checks the capsules, separating the unfilled pieces from the filled ones. After sorting, perfect pieces move to the polishing and printing stages.
7. Control Panel
This part usually consists of an HMI display or touch screen with a few buttons and switches. You use it to control and monitor the filling process, regulating various parameters and features.
Some semi-automatic machines may not have display controls but have buttons and levers. These allow you to start and stop operations. They include the power on/off button and various other functions.
8. Mechanical Drive System
The drive system represents the moving components of semi and fully automatic fillers. These allow the machine to undertake the various production stages. The parts comprise motors, gears, conveyors, and other components.
Some are electrical, while some utilize air pressure to cause motion. The motion can be linear, oscillatory, or rotary. The drive system receives instructions from the control system, working in turns to complete the filling steps.
9. Vacuum System
This system applies a vacuum to perform various functions. It may load and separate the capsules or clean the machine. It also operates capsule and powder feeding in automatic fillers.
The system typically includes a vacuum pump, tubes to convey this pressure, and valves to control its operation. The pump is usually separate and not part of the machine construction.
10. Lubrication System
The filler contains moving parts that experience rapid wear from friction. The parts may even heat, seize, and stop moving in extreme temperatures. Lubricating helps reduce friction, protecting your machine from wear and jamming.
The system consists of tubing and channels and their entry points. These convey lubricating oil to all moving parts. It works automatically, sending lubricant to various machine sections.
11. Sensors and Detectors
Automatic capsule filling machines depend on sensors to ensure proper operation and safety. The sensors perform various functions, such as detecting capsule or fill material levels.
They can also be metal detectors to check the capsules for contamination or counters. Other options include sensing passing pieces for counting, visual features for sorting, etc.
Capsule Sealing Machine Change Parts
Some capsule filler parts are interchangeable. You swap these to customize your filling based on fill material or encapsulation size, among other needs. They include, but are not limited, to the following:
- Tamping pins
- Dosing discs
- Dosing pins
- Capsule holders
- Sealing bells
- Wipers and brushes
Capsule Filling Machine Parts Cleaning and Maintenance and Safety
Users must maintain the various capsule filler parts to ensure proper operation and reliability. The maintenance schedule involves a few undertakings, which include the following:
Inspection – regular inspections allow you to catch problems early, preventing premature device failure and saving you unnecessary losses. Look out for worn, loose, or broken parts and fix or change them.
Calibration – proper calibration ensures accuracy in every filling step, from capsule feeding and orientation to dosing and filling. Always check the machine to see if earlier settings are out of place and recalibrate them.
Lubrication – Add lubricant when necessary to reduce friction and ensure smooth operation. Proper lubrication prevents increased wear or overheating, prolonging your filler’s lifespan.
Cleaning – always clean the machine to remove dirt and filling material residuals. Ensure you clean the machine after every session to avoid contamination or clogging, among other issues.
Ensuring every part remains safe for users is also essential. Keep electrical components and moving components covered and out of reach. Most filler types come with safety doors to ensure that.
Conclusion
This guide discussed key parts of a capsule filling machine or sections that execute the filling processes. We also looked at its maintenance requirements and good care practices. This information should help you keep your machine in good condition and make it last a long time.
