ZPSX series rotary tablet press structure principle

ZPSX series rotary tablet press

1. Use and scope of application

1.1 This series is a small rotary rotary tablet press with automatic rotation and continuous compression. It is mainly used in the pharmaceutical industry R&D center, college laboratories, pharmaceutical research institutes, hospitals, pharmaceutical laboratories, tablet manufacturing, and also in the chemical, food, electronics, battery, ceramics and other industrial sectors, the granular raw materials Compressed into tablets.

1.2 press series, powder containing an amount of energy suitable for press molding (100 mesh or more) does not exceed 10% of the particulate material. Not suitable for semi-solid, moist low melting point, moisture-prone raw materials and powder-free powder pressing.

1.3 This series is suitable for pressing round, lettering and shaped tablets of 4~ 22mm.

2. Main technical parameters

3. The main structure of the machine:

3.1 feeding device

v   The device is a feeding device, and is mainly composed of a hopper, a feeder, an adjusting screw, a butterfly valve, a scraping plate and a blade plate.

v   The feeder is a moon-shaped grid feeder, and the gap between the working surface of the turntable can be adjusted. The amount of powder to be fed is controlled by an adjusting screw and a butterfly valve.

3.2 Upper pressure wheel frame device

v   The device is mainly subjected to the pressing force and determines the depth of the die for the upper punch. The upper punching die depth is adjustable. Mainly composed of pressure roller assembly, pressure roller shaft, bearing and so on.

3.3 upper rail guide and pre-pressure wheel device

v   The upper rail guide is equivalent to the integral cylindrical cam, which determines the trajectory of the upper ram moving up and down on the circumference, and the upper rail guide is fixed on the top cover. Mainly include: rail guide, upper rail guide, upper stamping rail, cover plate and other components. The upper pre-pressure wheel device is an independent adjustment mechanism. Mainly subject to pre-pressing force. The pre-pressing die depth is adjustable. After two pre-pressing and main-pressing tablets, the extruded tablets can effectively ensure the quality of the tablets. There are pre-pressing wheel, pre-pressing wheel axle, pre-pressing wheel frame, positioning plate, etc.

3.4 turntable device

v   The turntable is the main actuator for the work of the tablet press, with dies on the circumference. It has a turntable, a spindle, and a middle mold screw. The main shaft has a pair of tapered roller bearing supports, which are coupled with the turntable and the worm gear box. The lower punch die hole is provided with a punch seal. Turn the handwheel to move the turntable clockwise.

3.5 lower rail guide

v   The lower rail guide device is composed of a lower rail guide, a lower preloading wheel and a filling device. The lower rail guide is a cylindrical planar cam that mainly controls the trajectory of the lower punch moving up and down. It consists of an undershoot upstream rail, a lower thrust down rail, and a lower loading and unloading rail. The high point of the downside rail is the production position. The lower pre-pressure wheel device mainly receives the pre-pressure and adjusts the thickness of the pre-pressing piece, and the thickness thereof is displayed by the electronic displacement measuring screen. He includes the lower preloading axle, the lower preloading wheel, the lifting rod, the worm gear and the coupling and the adjusting handwheel. The filling device is of an adjustable structure, which is determined by the weight of the tablet. It consists of filling rail, lifting rod, worm gear, worm and coupling and adjusting hand wheel. The filling amount is measured by electronic displacement scale and displayed on the screen.

3.6 lower pressure wheel device

v   The device is primarily subjected to tableting forces and to adjust tablet thickness. It consists of a lower pressure wheel frame, a pressure roller, a lower pressure wheel shaft, a worm gear box and a pressure sensor. The lower pressing frame is a lever type structure, and the thickness of the tablet is measured by an electronic displacement scale, and the value is displayed on the screen.

3.7 rack device

v   The device is the outer cover of the machine and is a fully enclosed structure. It consists of a top cover, a middle plate, a bottom plate, and upper and lower columns. The upper part is closed by a window, and the lower part is surrounded by a stainless steel door. The contact part of the tableting studio and the machine parts are separated by a stainless steel cover or a surface coating. The door and window are opened, which can directly contact the internal parts of the machine for easy operation and maintenance. The front of the machine is a control box.

3.8 transmission

v   The device is mainly composed of a worm gear box, an electric motor, a test wheel, and an electronic displacement ruler and a ruler frame. The worm gear box adopts an advanced square box-shaped shaft-mounted structure, and the motor is driven by a synchronous toothed belt and a pulley. It is transmitted to the worm gear box, and the spindle and the turntable are rotated by the spline. The output speed of the motor is obtained by variable frequency stepless speed change. The test wheel is mounted on the sleeve of the worm shaft. The electronic displacement scale mainly measures the filling amount and the thickness of the tablet and the thickness of the pre-pressed tablet.