The working process of the tablet press can be divided into the following steps:
1. The punch portion of the lower punch (with its working position facing upward) extends from the lower end of the middle die hole into the middle die hole to seal the bottom of the middle die hole;
2. Using a feeder to fill the middle mold hole with the drug;
3. The punching part of the upper punch (the working position is facing downward) falls into the middle die hole from the upper end of the middle die hole, and descends a certain stroke to press the powder into a piece;
4, the upper punch lifts out the hole. The undershoot rises to push the tablet out of the middle die hole to complete a tableting process;
5. Undershoot down to the original position and prepare for the next fill.
Disassembly and installation of main components
1. Disassembly of the middle die plate: Pull out the powder retaining plate, remove the hopper, unscrew the feeder set screw, unscrew the feeder fixed stud and spring, remove the feeder, and unscrew the middle die plate set screw and spring The gasket can be used to remove the middle platen. Installation: Refer to the reverse order above. Pay attention to alignment when screwing the feeder tightening screw. So as not to damage the wire hole of the feeder.
2. Disassembly of the upper punching rod: Loosen the connecting rod lock nut, turn the upper punching rod to disengage it from the connecting rod, turn the handwheel to raise the eccentric wheel shell to the high position of the zui, turn the eccentric shell to make the connecting rod swing to The upper punching rod can be pulled out from the upper side of the mold frame hole. Installation is performed in the reverse order described above.
3. Disassembly of the lower punching rod: Unscrew the lower punching fixing screw, the butterfly screw and the gear pressing plate rotate the adjusting gear, so that the lower punching core rod is lowered and taken out from the bottom hole of the fuselage. Installation: Refer to the reverse order above.
4. Connecting rod removal: first remove the upper punching rod, then remove the wire retaining ring on the connecting rod pin, take out the connecting rod pin, and then take off the connecting rod. Installation: Follow the reverse order above.
5. Large pulley, pinion and bridge axle disassembly: lower the V-belt, unscrew the right end of the bridge shaft and the washer (in the fuselage), and pull the large pulley together with the pinion and the bridge shaft. Then, the bridge shaft can be pulled out of the wheel hole. (The large pulley is integrated with the pinion and the bushing, and generally does not need to be disassembled). Installation: Refer to the reverse order above.
6. Spindle disassembly: The disassembly of the spindle should be carried out by two people. First remove the large pulley, then unscrew the nut to remove the lever, lever shaft and filling roller. (Remove the handwheel and camshaft if necessary) Remove the protective cover, unscrew the screws and washers, and use a wooden hammer to hit the non-working surface inside the large gear (not significant). Remove it (be careful not to lose the lifting roller), then hit the shaft end with a wooden hammer and a copper rod (be careful not to damage the shaft end screw hole), while holding the other end of the shaft and holding the eccentric wheel shell, slowly The spindle is removed. Installation: Refer to the reverse order above.
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