Overhaul of capsule machine

Overhaul of capsule machine

Regular maintenance and repair is an important means to extend the service life of the machine and improve the efficiency of use, and it is also one of the long-term work. This article gives several suggestions for the routine maintenance of pharmaceutical packaging production equipment.

Capsule manufacturing is a continuous production process. The downtime will cause quality fluctuations. Therefore, inspection and maintenance before production, planned maintenance (strong inspection), and regular replacement of wearing parts are particularly important.

Handover cleaning inspection system: It takes about one hour to clean and check the time of replacement of wearing parts, preferably one by one. When the machine is replaced, the lubrication set, the tool holder and the mold release frame are cleaned, and all the waste capsules and sacs on the machine table are sucked out, including the glue splashed from the dipping tank and the oil leaking from the machine base and the ground. Clean the ferrules and collet with alcohol. Then check wedges, belts, pulleys, couplings, chains, connecting rods, cams, rollers, un-camped cams, dip racks, dip tanks, T-slots, tool holders, chucks, thimbles, sleeves Whether the rack and pinion are normal, including the positioning accuracy and whether the gap is in the normal range. Check whether the temperature controller, photoelectric head, viscosity juice, drying tunnel air volume, etc. are normal.

Check needle stick condition

Tightening and lubrication requirements: The important running parts and positioning parts are tightened before the start of each shift, and the pins are tightened or replaced. Check the amount of oil in the hand pressure oil pot and press the oil, then refill the other moving parts as specified. Start-up inspection: Turn on the hydraulic system before starting the machine to check whether the oil pressure and oil temperature are normal. The system has no abnormal sound. The oil pump, oil motor, hydraulic valve, cylinder and pipeline are normal and leak-free. Then, jog, check that each part has no abnormality, then turn it on. The standby station idles for a few minutes, and confirms that the movement and sequence of each component are correct before starting the impregnation.

Strong check: once a month

Check the wear level and necessary replacement of frequently moving transmission parts such as keys, pins, coupling parts of coupling pulleys, sprocket, bearing bushings, rack and pinion. Parts with positioning accuracy and matching accuracy requirements such as sleeves, jackets, thimbles, T-slots, etc. are checked for size and accuracy, including whether the gap error exceeds the accuracy range. Check and correct the program control program, the control accuracy of the immersion cam speed controller, etc.

Planned maintenance

At least one major overhaul or repair every year, large-scale disintegration of the machine, replacement or repair of worn parts such as bearings, bushings, cams, gear racks, guide rails, reference surfaces, etc. Detect and correct the matching motion precision such as fire head, sleeve block, thimble, stripper frame, tool holder, dip rack, drying tunnel and guide rail, eliminate positioning error and motion error, adjust and eliminate rack and pinion, and connect Clearance of mechanisms such as rods, cam sheaves, and couplings. Regular replacement of consumables: Proper service life is determined for all types of bearings, bushings, rollers, hinged linings, coupling linings, collet covers, etc., which are located in hidden parts but are essential for operation. Mandatory replacement during the use of strong inspections and planned maintenance.

Since the Kasaba system is operating in a highly self-controlled state, some abnormal conditions are not easy to detect. Always check its operation status, and schedule a one or two-day shutdown on a regular basis (two to three times a year) to clean and maintain the Kasaba system. , repair pumps, bearings, nozzles, refrigeration systems, control systems, etc., every two years or so should extract the Cassani liquid, the entire system is thoroughly cleaned.