The rotary tablet press is an important mechanical equipment for solid dosage pharmaceuticals, which is used to press powder raw materials into tablets of uniform size. In order to ensure the normal operation of the equipment and extend the service life and stability of the tablets produced, the correct and regular maintenance process is essential. The following will describe the detailed maintenance guide for the important parts of the tablet press machine, aiming to help operators understand how to perform effective daily maintenance of the tablet press.
Cleaning the residual powder on the turntable of the tablet compression machine is an important daily maintenance work, which helps to ensure the normal operation of the equipment, prevent cross contamination, and ensure the quality of the tablets.
Here are the specific steps to clean the residual powder on the turntable:
Remove the mold: Make sure the equipment has stopped running and cut off the power to ensure safety. According to the instructions of the tablet press machine operation manual, correctly disassemble the upper and lower punches and the middle mold of the tablet press to facilitate cleaning of the turntable.
Take out the tool box that comes with the machine and take out the cleaning tools inside, which include a soft brush, a non-metallic scraper, a compressed air spray gun, a sieve ruler, and bring your own clean rags, white oil, disinfectant and a suitable cleaning solvent (usually ethanol).
Use a soft brush to brush away the powder residue on the surface of the turntable of tablet press machine and in the grooves of the middle mold, and use a compressed air spray gun to remove the powder residue in the grooves and corners of the turntable. Then wipe the turntable surface with 95% alcohol to remove more stubborn residues. Wipe the turntable with a disinfectant (such as 75% ethanol) to ensure thorough disinfection.
If the time interval between the production of the next batch exceeds 6 hours, the standard operation is to perform anti-rust treatment. Because most turntables are made of stainless steel or cast iron, it is recommended to spray an anti-rust agent on the surface of the turntable and ensure that the surface of the turntable has been thoroughly cleaned before anti-rust work.
After the cleaning work is completed, wipe the turntable dry with a clean rag and dry it naturally in a well-ventilated place. After the turntable is completely dry, carefully check the turntable for any cracks, damage or signs of wear.
There are several things to note during the entire turntable maintenance process: Avoid using metal tools, because after scratching the turntable surface, excessive metal materials will be produced during the subsequent operation of the tablet press, contaminating the tablets. Corrosive solvents cannot be used for cleaning, which is also to protect the flatness of the turntable.
The above are standard turntable maintenance steps. Following standard operations can effectively clean the residual powder on the turntable of the automatic rotary tablet press machine and ensure the normal operation of the rotary tablet press. Regular maintenance actions not only help improve production efficiency, but also extend the service life of the equipment.
The feeder of the tablet press machine is one of the key components to ensure that the material enters the tablet pressing process evenly and accurately. Correctly disassembling and cleaning the feeder is essential to ensure the normal operation of the tablet press machine and the quality of the product.
First, disassemble the feeder. The first step is to separate the hopper and the feeder, remove it from the feeder, and pull out the powder cover. Loosen the screws on both sides of the feeder so that the entire feeder can be removed. Use a screwdriver to open the feeder cover and separate the top and bottom so that the inside and the feeding impeller can be cleaned.
Use a soft brush to brush away the powder residue on the surface and inside of the tablet press machine force feeder. Use a compressed air nozzle to aim at the gap between the impeller connection and the inside of the feeder, which is the most difficult part to remove. Use 95% ethanol to wipe the entire surface and inner wall of the feeder. The complex internal structure needs special inspection and cleaning.
After waiting for the inside and outside of the feeder to dry, push the feeder in according to the guide rail on the tablet press, align the screw hole and tighten the screw.
According to the above steps, the feeder of the tablet press automatic can be very easily disassembled and cleaned, and then click the jog on the PLC panel to check whether the impeller of the feeder can run smoothly.
The upper punch, lower punch and middle die are very important parts of the tablet press machine. They are the key to determine the shape and quality of the tablets, so their maintenance is extremely important.
Make sure that the tablet press machine has stopped running and cut off the power supply. According to the instructions of the equipment manual, knock the middle die out of the middle die hole on the turntable. The upper and lower dies are very easy to remove because of the damping structure we use.
Wipe the removed mold clean with a rag and carefully check for cracks and specific wear. The tablet press molds produced by Rich Packing are made of 2Cr13, which has a normal service life of more than 10 years. And we give a set of standard molds for free, so it is enough for nearly 20 years of use.
The mold material of the tablet press is relatively special, hard, wear-resistant and corrosion-resistant, and it is relatively simple to clean. The mold can be placed in an ultrasonic cleaning tank and soaked in 95% alcohol for cleaning to remove more stubborn residues.
If the removed mold needs to be replaced, or the mold needs to be stored for a long time, it is necessary to apply anti-rust oil after the mold is dried, and store it in a place at room temperature, and affix obvious labels and store it according to the machine model and tablet type. -
Usually, the lubrication system of ordinary tablet compress machine includes manual dry oil lubrication system and thin oil lubrication system, while our high-end tablet press machine include circulation lubrication system and electric dry oil lubrication system in addition to the above two lubrication systems. Lubrication is an important step to extend the service life of transmission gears, worm gears, bearings, main shafts and upper and lower pressure wheels. The following are specific maintenance steps for them:
First, check for leakage in the lubrication system. Specifically, check whether there is leakage in the lubrication oil circuit, oil pipe, oil cup, oil control valve and other parts. The simple operation is to touch the possible leaking parts with your hand to feel whether there is oil overflow.
Then check whether the lubrication system is blocked. It is recommended to replace the oil control valve and other wearing parts every six months; check whether the oil pipe is bent or blocked to ensure that the oil circuit is unobstructed; check whether the oil level in the oil tank or oil cup is above the standard line. If it is insufficient, add new lubricant and add oil to the appropriate oil level.
Regularly change the quality of lubricant; first, take a small amount of lubricant and drop it on the oil absorbing paper to check whether the color of the lubricant is clear and transparent, and whether there are impurities or deterioration. According to different lubrication systems, replace different types of lubricants according to the maintenance manual of pill tablet pressing machine.
After the inspection, run the car empty to distribute the lubricant to each lubrication point to ensure the normal pressure and flow of the lubrication system.
Through the above steps, the operation failure of the tablet press machine caused by poor lubrication can be reduced, ensuring the continuous and stable operation of the equipment and extending the service life.
By regularly performing the above maintenance steps on the three key parts of the rotary tablet press machine, the occurrence of tablet press failures can be effectively prevented and the normal operation of the equipment can be ensured. We are the leading tablet press manufacturer in mainland China, providing customers with a full set of free rotary tablet press operation manuals and videos, including use, cleaning, maintenance and PLC parameter adjustment. If you have any questions about high-speed automatic tablet press machine, please do not hesitate to contact us. I believe that our rich experience can help you.
E-mail : manager@richpacking.cn
Building D, No. 226, Beishan Qiaotou Street, Haizhu District, Guangzhou City,Guangdong Province,China
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