Structure characteristics of tablet press 1, this machine for tablet on the upper structure, its composition mainly, in the mold, the impact on three parts, become an organic whole repeatedly around 19 pay die equally arranged in the rotary table, up and down on the edge of the tail end of the push rod embedded in the curve of the fixed guide rail, when rotary table for rotary motion, rushed up and down the guide with the curve rail for lifting movement tablet and to achieve. 2. Main working processes are as follows: (1) Filling; (2) tablet compression; (3) out of the film. Three programs are carried out continuously. There are adjustment and control mechanism for filling and tablet pressing. There are instructions for operation. 3, The machine adopts flow grid feeding mechanism, can make the material evenly filled with die hole, reduce the sheet weight difference. 4, the motor is installed in the frame, the triangular belt drives the worm to drive the turntable, and the mo

The turntable part of a tablet press The turntable of the rotary tablet press is a circular disk, and the punching rod holes and the middle die holes are evenly distributed in the surrounding areas. When it rotates under the drive of the main shaft, each punch rod moves up and down along the curved guide rail, thus completing the tablet pressing process. The turntable is the main working part of the tablet press. In the continuous working process, the analysis and solution of its common faults are given. (1) the coaxiality of the two holes caused by long-term wear of the punch hole or the middle die hole does not meet the requirements: in the process of use, the punch hole and the middle die hole due to different degrees of wear will likely appear different axial phenomenon, so that the punch rod up and down movement friction resistance increases, serious will lead to normal compression. If the wear is not very serious, the coaxiality can be restored by using reamer to punch the

The flat plate structure of blister packing machine Plate type blister packaging machine operation process and execution of work: molding plastic is heated to softening at plate type preheating to remove plastic state, servo traction to the plate type forming disassembly, dominating shorten air will soften hard blow molding of plastic (or stamping molding) into a blister, remove the filling materials will be filling into the bubble, and then transfer to a plate type sealing removal, at the appropriate temperature and pressure, will cover plastic plate and aluminum foil sealing, then sent to the typing, stamping and punching disassembly, with batch number, pressure out of the broken line, cutting into a regulation the size of the plate. That is, molding plastic hard sheet unwinding → preheating → blow molding → material filling → sealing aluminum foil → batch number → pressure break line → servo → punching and cutting → waste collection. Some drugs need to avoid light packaging, the

Control system of tablet press (1) The electrical control of the whole machine adopts PLC controller and variable program control, which has many automatic control functions such as pressing sheet overload stop, chip hopper short of material stop and so on. (2) The double detection of photoelectric switch and pressure sensor ensures the automatic picking of missing chips. First of all, the use of photoelectric sensing, in case of missing chip or chip location is not accurate will immediately send out abnormal signals; Secondly, the pressure sensor will also emit abnormal signals when it encounters underpressure. When abnormal signal occurs in any unit of this dual detection, the PLC controller will start the tick program to complete the tick action. In order to ensure the failure of the photoelectric sensor can still complete the detection, a second set of photoelectric sensor is added to make the core content of the chip reach 100%. (3) Based on the core laminating machine in

Tablet press selection According to the production process and quality requirements of drugs, the selection of the tablet press is mainly from the following aspects: (1) According to the characteristics of powder and particle, choose the appropriate tablet press (mainly Chinese medicine or western medicine, the proportion of ingredients of raw materials, etc.); (2) Determine the output of equipment according to capacity and reserved capacity; (3) Select the appropriate charging system according to the existing process; (4) According to the production records and deviations, equipment maintenance frequency and equipment control points in the production process of the product in the past; (5) the operation is convenient, reliable, there is a necessary adjustment device. Such as mechanical regulating device, filling regulating device, pressure regulating device, speed regulating device, sheet thickness regulating device, etc. (6) The design of the tablet pressing room shall meet th

Tablet press die ordering matters needing attention In order to make the drug factory users can order the appropriate die, this paper makes some simple introduction.at the same time, it is suggested that the drug factory users can have full discussion with the die manufacturer to reduce the possible problems during production. 1. Due to some characteristics of track design and processing technology, it is suggested that users must choose products from the same factory for tablet press and die. Do not blindly pursue cheap and buy inferior die, then lead to the damage of the tablet press. 2. The choice of the tablet type: the correct choice of the tablet type is a successful step of the press die. For example, chewable tablets require higher hardness, and can be easily chewed, and most of the beveled flat tablets are selected; Shallow concave for film coating is optional. Because there is no adhesive and lubricant in the raw material of Chinese medicine tablets, it is required t

Type of capsule filling machine Capsule filling machine abroad can be divided into two categories by the movement mode of spindle drive table: one is continuous type, the other is intermittent type. They were founded by MG2 (Italy) and Bosch (Germany). Bosch uses intermittent, MG2 uses continuous, and Italy's IMA has both. According to the filling form, it can be divided into two kinds: gravity flow and forced type. According to the structure of metering and filling device (powder/granule and pellet), it can be divided into: metering disc, slide plate, metering pipe, metering tube inserting metering and piston pushing down filling, metering cylinder piston falling metering and gravity flow filling, metering tube plate negative pressure metering and positive pressure filling, etc. The BOSCH models are metering plate and slide plate types, while the MG2 and IMA models are metering tube types. Capsule filling machine is a very precise equipment, whether it is the transmission part,

Fatigue fracture of tablet press die The punching die of the tablet press is a part of repeated motion, and the probability of fatigue fracture exists. Once the die breaks in the work, the consequence is very serious. Therefore, the fatigue fracture of the die should be strictly prevented. We know that the fatigue fracture of steel has a development process of crack formation, expansion and fracture, and the formation stage of fatigue fracture generally accounts for 70%~80% of the fatigue life. Therefore, preventing the premature formation of fatigue crack is the key to improve fatigue fracture. Fatigue fracture is the part under the action of cyclic load, starting from some weak links, the weak links of the punching die is in the punch arc transition which is easy to produce stress concentration, to prevent the formation of fatigue crack, the first is the selection of the punching die, that is, the punch and the punch body arc can not be too small; Secondly, the roughness of the

The mechanism of rotary tablet press Rotary tablet press is a machine which is made up of several pairs of punch dies distributed on the turntable and moving up and down in a circle according to a certain track, and presses granular materials into tablets through the press wheel. And punch with the linear velocity of the turntable rotate more than 60 m/min called high-speed rotary tablet press machine, the high-speed rotary tableting machine has forced feeding machine, the machine is controlled by PLC, automatically adjust the pressure, control weight, eliminate waste pills, print data, display downtime, and other functions, in addition to can control weight difference in a certain range, quality problems such as lack of Angle, loose lobes can automatically identify and eliminate. The shape of the tablet pressed by the tablet press was initially oblate and then developed into shallow and deep circular arcs on the upper and lower sides, which was for the need of coating. With the

General requirements for powder direct tablet press device According to the problems that are easy to occur in powder direct tablet pressing, the tablet pressing machine not only has the performance of ordinary tablet pressing machine, but also should pay attention to the configuration of the following devices. 1. Oscillating device or feeding powder making device. The fluidity of fine powder is always not as good as that of particles, and it is easy to appear cavities in the feeder or flow fast or slow, resulting in a large difference in sheet weight. The device can make the powder flow evenly into the die hole. 2. Prepressure device. Because there is more air in the powder than in the particle, top crack is easy to occur when pressing the tablet. The solution is to reduce the speed of pressing straight sheet, the second is the second compression, that is, the first time for the initial compression, the second time for the final compression sheet. Prolonging the pressing time