Installation adjustment of various parts of rotary tablet press

1. Installation and adjustment of the die: Prepare the die before installation: Remove the hopper and feeder. Open the right door and turn the handwheel to clean the turntable working surface, the die hole and the die to be installed. Rotate the pressure to adjust the wheel and adjust the pressure to small. Remove the undershoot loading and unloading rails. Installation of the middle mold: Rotate the middle mold fastening screw on the turntable about 1 mm from the outer circumference of the turntable. Be careful not to touch the parts such as the powder suction nozzle. Do not touch the head of the screw when the middle mold is installed. The middle mold device is tight, and it should be placed smoothly. Put the rod into the upper punching hole and gently tap it in. After the middle mold enters the die hole, the plane is not higher than the plane of the turntable, and then the screw is tightened. Installation of the upper punch: first remove the tongue, then insert the upper punch into the hole, rotate the punch with the thumb and forefinger, check the flexibility of the head to slide up and down the middle mold, and no jamming is acceptable. Turn the handwheel again until the neck of the punch contacts the parallel rail. The upper punch is fully loaded and the tongue is fitted. Installation of the undershoot: Install according to the method of the upper punch, and install the underload loading and unloading rail.

2. Installation and adjustment of the feeder: Install the feeder on the support frame of the feeder, then screw the knurled screw, and then adjust the adjustment screw so that the gap between the bottom surface of the feeder and the work surface of the turntable is 0.05-0.1 mm. Tighten the knurled screw and adjust the height of the scraper to make the bottom plane flush with the working surface of the turntable. Tighten the screws.

3. Adjustment of filling amount: The filling adjustment is indicated by the adjusting handwheel installed on the right side of the front of the machine. When the hand wheel rotates clockwise, the amount of filling decreases, and vice versa. When adjusting, pay attention to enough particles in the feeder, and adjust the pressure to make the film have enough hardness to weigh.

4, tablet thickness adjustment: tablet thickness adjustment is controlled by the adjustment hand wheel installed on the left side of the front of the machine, there is an indication mark on the side of the hand wheel. When the hand wheel is rotated in the counterclockwise direction, the thickness of the tablet is lowered, whereas the thickness of the tablet is increased. After the filling amount is set, check the thickness and hardness of the tablet, and then make appropriate fine adjustment until it is qualified.

5. Adjustment of the amount of powder: When the amount of filling is adjusted, adjust the amount of particles. Firstly, loosen the screw on the side of the bucket frame, and then rotate the adjustment screw on the bucket frame to adjust the distance between the hopper mouth and the working surface of the turntable. The distance from the normal observation of the storage of the particles in the feed port is not acceptable. After adjustment, tighten the screws.

6. Speed ​​selection: The method of adjusting the speed is relatively simple. Just turn the adjustment knob to increase the speed clockwise, and vice versa. The key is the choice of speed, which has a direct impact on the life of the machine, the weight of the tablet, and the quality of the tablet. Due to the nature of the particles, viscosity, water content, particle size distribution and particle size, the pressure is different, so it cannot be determined uniformly. It can only be determined according to the actual situation and the experience of technicians. However, in general, if the mineral, plant fiber content, large diameter, and poor viscosity of the material are suppressed, it is preferable to use a low pressure tablet. The high speed of zui generally does not exceed 25 rpm. Conversely, if the viscous, fluid, small, and easy-to-form particles are pressed, a higher speed can be selected.