Technical advantages of ZPYGS55 sub-high speed rotary tablet press

Liaocheng Wanhe Industrial Manufacturing Co., Ltd. Li Zujun
Abstract: From the new technology adopted by ZPYGS55 sub-high speed rotary tablet press, its technical advantages and advancement are analyzed.
Keywords: new technology; application
The tablet press is an indispensable equipment in the production of tablets. It is widely used in China due to its low vibration, relatively low noise, low energy consumption, high efficiency and accurate tablet weight. It can be divided into ordinary rotation according to the speed. Tablet press and fully automatic high speed tablet press. However, from the perspective of the scale of domestic tablet production, the medium-sized production scale is the main one, showing the situation of medium-volume production and multi-variety. However, from the practice of tablet production projects, the selection of rotary tablet presses often encounters “choose ordinary According to this market demand, our company has successfully developed the ZPYG45 sub-high-speed rotary tablet press which is compatible with the advantages of the two models, and has achieved great success. In order to continue to improve the performance of the sub-high-speed models and better serve our customers, we have successfully developed the ZPYGS55 series of sub-high-speed tablet presses. This model uses many new technologies, and the cost is only about half of that of high-speed machines, but the output is close to high speed. Machine, the whole machine is cost-effective.
1, an increase preload mechanism
For some difficult materials, the pressing time is long, the preloading mechanism is added, and the upper and lower preloading wheels can be adjusted, which prolongs the pressing time and offsets the contradiction of shortening the pressing time after the speed increasing.
2 , added a mandatory feeding method
Drawing on the advantages of the high-speed rotary tablet press forced feeding structure, the forced feeder with rotary impeller can be used to control the frequency of the impeller according to the nature of the material. Most of the ordinary rotary tablet presses use a moon-shaped grid feeder. The die hole rotates around the axis, and is filled in the die hole by the free fall of the particles. After the speed increase, the feeding mode causes the defect that the material with low density and poor fluidity cannot fill the die hole, which solves the problem of increasing speed. The problem of insufficient filling is caused; at the same time, the forced feeding structure adopted is also particularly suitable for suppressing materials with poor fluidity and low density, and expands the use range of the compressed tablets.
3 , the lower rail guide replacement is more convenient
The connection method of the lower rail guide and the filling adjustment mechanism and the main body is connected by two arc-shaped pad plates, and the arc-shaped pad plate is positioned by the pin and screwed to completely change the replacement and maintenance mode of the original lower rail guide.
4 , punch stability guarantee structure
Since the speed of the ordinary rotary tablet press increases, the position of changing the running direction during the operation of the upper and lower punches is prone to "jumping" phenomenon, and "jumping" not only affects the difference in the weight of the film, but also has a large noise. Therefore, the ZPYGS55 sub-high speed tablet press has been scientifically improved. First, the upper and lower punch guides adopt special curve guides to make the vertical acceleration of the punches zero, avoiding the high speed of the punches. During the movement, the force is unbalanced and the noise is generated, and even the large impact is broken. Secondly, the filling system increases the limit device, and the damper device and the pull-down device are added in the operation of the lower punch to effectively prevent the undershoot and the beating. Increase the filling stability to reduce the difference in weight; third, the main rotating parts and the pressure roller mechanism use rolling friction, which reduces noise and parts wear, and reduces power loss.
5 , increased break protection device
Since the ram end is easily damaged by damage to other components such as the feeder, the increase of the device can be stopped in a short time (the position of the turntable is turned over three rams), which serves the purpose of protection and effectively reduces Equipment failure rate and damage rate.
6 , humanized design concept
All-round consideration for the user, such as: the chip slot, the powder nozzle and other parts that need to be cleaned, can be easily disassembled without tools; the upper and lower pressure wheel parts add window and illumination, can clearly observe the upper and lower The movement of the pressure roller; the powder removal port is reserved under the main and pre-pressure rollers to facilitate cleaning of oil and dust; the lower stainless steel door can be easily accessed to each internal screw after opening; the upper compression chamber has 360° without dead angle The intelligent lubrication system, the tableting chamber and the main drive worm gear box are separated to reduce the pollution; and the common rotary tablet press die is common, which reduces the trouble of purchasing and storing the die.
7 , electrical control part
The electrical control system of ZPYGS55 sub-high speed rotary tablet press adopts IEC standard and adopts advanced PLC touch screen control. The operation and display are concentrated on the man-machine interface. Except for the main power switch and emergency stop button, no button operation is required. The effect of the powder on the electrical components is greatly reduced, and the reliability of the electrical system is indirectly improved, and the protection level of the human-machine interface is IP67, which can resist various harsh environments, and the design idea of ​​the centralized operation display is more in line with GMP; Some advanced control methods of the tablet machine, such as increasing the automatic stop function of the machine in the open press chamber, can reduce unnecessary damage to the operator, reduce dust and noise, and improve the environment of the press workshop, not only for the operator. Improved working conditions can also extend the life of electrical systems.
In summary, the main structure of the ZPYGS55 sub-high speed tablet press adopts the structure of high-speed tablet press, such as the transmission mechanism, and absorbs some simple and reliable design of the ordinary tablet press, such as pressure regulation principle, overload protection system, etc. Abandoning the high-speed tablet press is more complicated and difficult to process, costly, and prone to problems, such as hydraulic system, pressure and filling automatic fine-tuning system. It is an organic integration of the advanced design concept of high-speed tablet press and ordinary tablet press, which creates conditions for achieving better cost performance and is an ideal choice for the majority of tablet manufacturers.

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