Requirements for tablet pressing equipment in clean room workshop?
Requirements for tablet pressing equipment in clean room workshop?
The clean room tablet press is divided into single punch tablet and rotary tablet according to the number of punches, and can be divided into circular tablet tablet and guide tablet tablet according to the shape of the tablet to be pressed; the core of the single punch tablet The structure is composed of die ring, upper punch, lower punch, three regulators and a hopper that can move left and right,...
Text label: clean room tablet pressing equipment, clean room equipment requirements, clean room design, installation and construction
Requirements for tableting equipment in a clean clean room modular workshop?
The clean room tablet press is divided into single punch tablet and rotary tablet according to the number of punches, and can be divided into circular tablet tablet and guide tablet tablet according to the shape of the tablet to be pressed; the core of the single punch tablet The structure is composed of a die ring, an upper punch, a lower punch, three regulators and a hopper that can move left and right. With the help of an eccentric wheel and a cam mechanism, filling, tableting, tableting, etc. are completed within one rotation of the inertia wheel. Rotary tablet presses are widely used in tablet production, a turntable with three layers of raised edges is fixed on the vertical spindle of the rotary tablet press, and the three layers of raised edges are successively pressed from top to bottom. It is called the upper punching plate, the die plate and the lower punching plate. The same number of holes are evenly distributed on the circumference of the convex edge of each layer at a certain distance from the center line of the vertical spindle. a vertical line.
In order to make full use of the space of the die plate and improve the production capacity of the tablet press, the rotary tablet press is mostly designed as a double-press type. It becomes two cycles; there are two sets of pressing wheels in the double-pressing tablet press. In order to reduce the vibration and noise of the machine, two sets of pressing rollers are used to press alternately, so the number of punches of the rotary tablet press is mostly odd; there are many punching dies. It is made of bearings with high strength, hardness and wear resistance, and should have a high smoothness. The die should have good interchangeability. The size of the die hole is precisely matched with the punch, so that the punch is in the die hole. Can go up and down freely, the tolerance between punch and die hole is ≤0.06mm, and the tolerance of punch length is ≤0.1mm. In order to maintain the accuracy of punch and middle die, collision should be avoided when using, and punch and middle die should be stored in the counter when not in use In order to improve the adjustment accuracy, the worm gear and worm mechanism are used in each adjustment device; in order to prevent the friction between the feeder and the die plate, the distance between the bottom of the feeder and the die plate should be kept 0.03-0.1mm. Ordinary rotary tablet press has a small diameter of the turntable and a large bottom area of u200bu200bthe punch, although it is beneficial to the forming of the tablet, but the number of fillings is small, and the number of tablets per unit time is small. The friction increases; the increase in the number of pressure rollers will increase the area occupied by the equipment, so a secondary compression tablet press with two sets of pressure rollers with the same diameter is usually used instead of a tertiary compression tablet press. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and purification plants.
The clean clean room modular tablet press bears a lot of force when pressing the tablet. In order to prevent damage to the machine parts and the die, when pressing ordinary viscous powder, the speed of the tablet press should generally be ≤50r/min. The friction force of the punching die is large, and the rotation speed should be ≤40r/min. In order to improve the stress condition of the tablet press, an inclined pressing wheel tablet pressing machine is developed. The trajectory of the point is a complex curve. The quality of the tablets produced by the inclined wheel tablet press is better, and when the rotation speed is much higher than that of the ordinary tablet press, the damage to the punch and the middle die is far less than that of the ordinary tablet press. machine. The powder filling time of ordinary rotary tablet presses accounts for about 42% of the total operating cycle. The use of forced powder filling to shorten the filling time can reduce the diameter of the die plate and improve the production capacity of the tablet press.
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