The function of each structure of the tablet press The lower punch fastening ring is unified, which has the following functions There is no need to adjust the fixed ring of each punch separately. The punch replacement speed is fast and the parts need to be cleaned less. This structure makes the fastening resistance of each punch equal, no need to adjust again. Special sealing structure The window is sealed by the special dismountable structure and material for cleaning, which ensures that the machine pressing studio is completely sealed and the cross contamination caused by dust is eliminated. The screw hole of the punching table is closed, and the sealing ring covers the screw hole of the punching table, so as to prevent the powder from entering, and accordingly reduce the cleaning time. Working window frame structure in line with GMP requirements The four-sided window structure is composed of frameless double vacuum, the surface is smooth and easy to clean, and the st

The function of each system of the tablet press Tablet pressing system, double pressure forming, narrow spacing, large pressing wheel, frame structure design, so that it has the capacity of bearing deformation, long compression time, stable operation, and to ensure the tablet weight accuracy when pressing large tablets. The control system, its operating system and interface are controlled by PLC and POD respectively, and advanced control principle and reliable imported devices are selected to ensure the accurate realization of various program control and interlock protection functions, which can carry out various operations in production and operation, and effectively detect and control the tablet weight deviation automatically. The high precision and easy to disassemble forced feeder uses two agitators to force the material into each mold hole, which can effectively improve the particle fluidity and filling performance, thus ensuring the chip weight precision. Hydraulic sy

The filling of the tablet press Most of the ordinary type tablet presses adopt the grid type feeder that is the natural feeding, the die hole rotates around the axis, and fills the die hole by the free fall of the particles. After the rotating speed of the turntable increases, this feeding method is not effective, especially for the material with low density and poor fluidity, it cannot fill the mold hole. The sub-high speed plate-pressing machine innovatively applies the high speed type forced feeding structure, whose deceleration motor drives the reverse rotation of the impeller of the forced feeder, and forcibly fills the material into the middle die hole of the turntable, thus solving the problem of insufficient filling after the turntable speed increases. The forced feeding structure has the following advantages over the natural feeding system Different impeller structures can be adopted according to different materials to ensure that the materials are evenly filled into

The material of the die of the tablet press Moulds are made of a wide range of materials, usually carbon tool steel, bearing steel, cold-working die steel (such as high-speed steel, anti-wear steel, impact steel), hard alloy and ceramic materials. Some adopt imported die steel. More domestic use of bearing steel as die material. In short, no matter what kind of material is used, the mold should have abrasion resistance, impact resistance two characteristics. The cost, barnyard price, lifespan, and mechanical properties of the molds vary depending on the materials used. The material used is different from that of the type and specification of the die. The prices vary considerably. Users in the purchase of molds as far as possible to choose and buy a scale, strength, more regular manufacturers of products. Special requirements can be their own use of the mold manufacturers to explain, by the manufacturer to assist the selection. Additional, of material choose the price that has a dir

System operation mode of the tablet press By rotary tableting machine under punch, along the guide rail movement up and down, respectively, when the punch movement to die hole, upper punch upward movement feeder, lower punch through the CAM moves down, at this point, the upper surface of the punch and the die to form a cavity, powder particles after forced feeder blade wheel mixing concone fill the mould cavity, the punch through the drop-down excessive filling are formed when the low point of the CAM. The press press punch continues to move with the punching disc, and the down punch moves upward gradually when passing through the filling CAM, and pushes out the excess powder particles in the cavity. In the quantitative section, the upper surface of the filling CAM is horizontal, and the lower punch maintains the horizontal motion state. The quantitative scraper will scrape out the excess powder particles on the upper surface of the middle mold, ensuring the same amount of powder pa

Lubrication of the parts of the tablet press The lubrication process of rotary sheet pressing machine should be noted as follows: 1. The lubrication of general parts of the machine is equipped with oil cup and nozzle on the appearance of the parts. Butter and oil can be filled respectively according to the type of oil cup. 2. The top cover of the glass oil cup is lubricated with the rotary table and bearings at 2-4 drops per minute during operation. 3. The oil cup of the screw cap on the worm is the lubrication of the worm and worm wheel, which is added according to the actual lubrication condition in operation. 4. The two ends of the transmission shaft are equipped with rolling bearings, and the shaft housing is equipped with oil nozzles, which can be refueled once every two weeks, and the oil gun is pressed in. 5. The tail of the punching rod and the curve rail guide shall be lubricated with butter. It shall not be too much, so as to prevent grease from seeping into the powde

What are the performance of the tablet press in good condition? 1. Each lubrication point can produce oil under manual and automatic state. 2. Plate weight adjustment hand wheel, hardness hand wheel, pre-pressing hand wheel rotation is flexible and reliable. 3. The dustproof rings of the upper and lower punching plates shall be sealed without damage: 4. The upper and lower main pressing wheel and the upper and lower prepressing wheel rotate flexibly. 5. The middle die should be flush with or slightly lower than the punching plate and be fastened. 6. The working face of upper guide rail plate is smooth without burr sag. 7. The top punch can rotate in the die hole. Insert the die accurately at preloading without colliding. 8. The damping force received by the punch in the die hole is uniform and consistent. 9. The platform is parallel to and above the rotary table. 10. The scraper is tightly connected with the turntable, and the return powder ring has a movement of 1-2 mm at th

Pre - operation of the tablet press 1. The positioning screw at the rocker and the fastening screw at the oil filling hole have been fastened due to transportation reasons. Please loosen these two screws slightly before use. 2. Add a small amount of lubricating oil to each sliding part and moving part regularly. 3. If the machine is new or has not been in use for a long time, open the oil valve with the front screw and shake the rocker several times to make the system full of oil before working. 4. When the pressure rises to the required pressure, the pressure gauge will slightly drop due to the lag effect when the check valve is closed. This is not the fault of the machine, you can use the rocker to fill a little pressure oil to reach the rated value to keep the pressure constant. 5. The pressure oil can use clean N46 hydraulic oil or no. 30 oil.

Problems that need to be paid attention to when the tablet press is used The common faults of the mechanical parts of the tablet press are: guide rail, press wheel, punch press, die and other parts; The most common problems in the production process are sound anomalies and sheet weight differences, which involve many factors, including improper use and supervision. When using the press machine, the press room should be cleaned regularly and the working parts that are easy to wear should be checked regularly. Pay attention to the method of refueling during operation. Clean the remaining oil on the punch surface with a cloth, add some oil with a small brush, and then evenly apply it to the punch cap. However, the amount of oil should not be too much, so as not to cause oil powder into oil. Refuel at least twice per shift. Poor oil quality, guide rail and connecting rod lubrication only oil lubrication. You have a choice of 30 gear oil or air compressor oil. Molding press is v

The vacuuming device of the tablet press Rotary tablet press has become the main equipment for tablet production. Due to its high yield, stable quality and large production capacity, it has been widely used by pharmaceutical enterprises. According to GMP requirement, rotary tablet press should have vacuum device. The main working process of rotary tablet press is divided into three continuous processes: filling, pressing and extraction. During the production process, the powder is easy to fall on the middle punching plate due to the feeding device or the feeding itself. At the same time, it is usually equipped with external vacuum cleaners, mechanical precipitators, wet precipitators, electrostatic precipitators, filter purification precipitators, etc., but the common mechanical precipitators, whose main structure is to suck the vortex through the pump, the vortex pump impeller has dozens of blades. Spiral pump impeller rotating blade in mid-air is the effect of centrifugal induction