Pressing principle and precautions of rotary tablet press

Working principle and pressing process of rotary tablet press: 1 The working principle power is output by the motor, transmitted to the V-belt pulley through the stepless adjustment wheel, and then transmitted to the worm wheel under the turntable through the friction wheel in the clutch attached to the transmission shaft, so as to drive the turntable to rotate On the one hand, the auxiliary punch rod moves along the circle with the rotary table, on the other hand, it moves up and down the fixed upper and lower guide rails, and completes the continuous process of feeding, filling, pressing and discharging through the feeding device, filling device, tablet pressing device and other mechanisms 2 Tablet pressing process (1) feeding: when the next punch is under the charging hopper, the powder is filled into the mold hole (2) filling: when the downwash runs to the top of the tablet weight regulator, it rises slightly, scrapes the Zui of the scraper one grid after it, and then pushes out the redundant powder (3) tablet pressing: when the lower punching moves to the upper part of the lower pressing wheel, at the same time, the upper punching moves to the lower part of the upper pressing wheel, and the distance between the two is small, so the powder in the mold hole is compressed and formed (4) take out: after pressing into pieces, the upper and lower punches will rise along the track respectively When the lower punches run to the upper part of the take out adjuster, the pieces will be pushed out of the mold hole, pushed open by the scraper, and then led into the container, which is repeated Precautions for the use of rotary tablet press: ① before starting, check and confirm that all parts are complete and reliable, and the fault indicator light is not on; ② check whether the lubricating oil at each lubricating point is sufficient, and whether the pressure wheel rotates freely; ③ check whether the punch moves up and down flexibly by turning and whether it fits well with the track ④ when starting the main motor, make sure that the speed control button is at zero position; ⑤ when installing the charging shoe, use plug gauge to ensure the installation accuracy, and prevent powder leakage or grinding of the rotary table due to too large or small clearance ⑥ during the operation, the machine shall not leave people During the start-up production, observe whether the feeding shoe grinds the rotary table, check the operation status of the machine frequently, and stop the machine in case of any abnormality; ⑦ when the production is finished, pay attention to the material allowance, and stop the machine in time when it is close to no material, so as to prevent the machine from idling and damaging the mold ⑧ when disassembling and assembling the mold, it is necessary to use the hand turning gear, press the emergency stop button or turn off the main power supply, and only one person is allowed to operate, so as to avoid danger; ⑨ when the machine has abnormal sound, it is necessary to stop the machine for inspection, find out the cause and drive after troubleshooting (10) in case of emergency, press the emergency stop button on the left side of the operation console to stop the machine When the machine fault indicator is on, it will stop automatically Check the fault carefully and remove it before starting When the new machine is in the running in period of trial operation, it will start at a high speed, which should generally be below 24R / min after 3-4 months, the speed should be increased appropriately The Zui height should not exceed 32R / min.