Home > News > Content

Technology And Principle Of Tablet Press Machine

Apr 06, 2017


Technology and principle of tablet press machine



Guangdong Rich Packing Machinery Co., Ltd., specializing in the production of pharmaceutical tablet press, now to introduce you to the process and principle of tablet press,The die is a press mold pressing tablet, working face, the formation of the surface shape of the tablet punch, die is the diameter of the aperture. 

Basic profile

The die is the main working parts of tablet press machine, usually a die includes three parts, mold, on the structure of the undershoot undershoot, similar to the punch diameter are equal, with up and down the punch diameter and in mould hole and can slide up and down freely in the die hole, but not there is a gap can leak powder. 

According to the shape of the die structure can be divided into round, special-shaped (including polygon and so on). Punch the shape of the end surface of a plane shape, edge shape, shallow concave, deep concave and shaped, flat, cylindrical bevel shaped punch for tablet pressing flat, shallow concave for pressing double convex tablets, deep concave main press coated tablet chip, integrated form is mainly used to suppress special-shaped tablets. In order to facilitate the identification and use of drugs, in the face of die can also be carved with the name of the drug, dosage and vertical lines mark. To press different doses of tablets, the appropriate size of the die should be selected. 

working process

The working process of tablet press can be divided into the following steps:

1,The punch parts, the undershoot (its location up) by the die hole in the lower end extends into the die hole, sealed in the bottom of the hole;

2, the use of drugs to fill in the feeder holes;

3, punch on the part of the (its working position down) from the top of the die hole into the mold hole, and down a certain stroke, the powder into a film;

4, up the hole. The top of the tablet increased lower die hole, a pressing process;

5, down down to in situ, ready for the next filling. 

Tablet mechanism

1. Dose control

There are different dosage requirements for different kinds of tablets, and the large dosage adjustment is achieved by selecting different punch diameters. After choosing the die size, small dose adjustment is by adjusting the depth of the hole into the die down, thus changing the actual length in the die hole sealing after, to adjust the die hole

The purpose of filling volume of Chinese medicine. Therefore, should have the original position adjustment undershoot in the mold hole the mechanism in the tablet machine, in order to meet the requirements of dose adjustment. 

2.Tablet thickness and compaction control

The dosage of the drug is determined according to the prescription and pharmacopoeia. In order to meet the requirements of storage, preservation and disintegration time limit, there is also a requirement for a certain amount of pressure on the tablet. Pressure regulation is essential when pressed. This is achieved by adjusting the amount of overshoot in the die hole. Some press during the tablet process not only on the downward movement, upward movement but also has lower, up and down by the relative motion to complete the tablet process. But most of the pressure regulation is to adjust and control the pressure by adjusting the amount of the upper and lower body.

Guangdong Rich Packaging Machinery Co., Ltd. production of ZP - 23/25/27 rotary tablet press is a kind of double pressure, automatic-rotation continuous tablet machine, granular material can be compressed into tablets. It is mainly used in pharmaceutical tablet production, at the same time, suitable for chemical, food, electronic industries. According to the customer request, can suppress the wafer, special-shaped pieces, double-sided lettering. Totally enclosed outer cover shell, the material of stainless steel, can maintain normal loading to prevent cross contamination, in line with the GMP requirements. With transparent cover, can clearly observe the status of the compressor, the side panels can be opened entirely, and clear up and maintain within the easy to. All controllers and operating a rational layout, convenient operation, steady running, safe and accurate. Rotary speed, the depth of the filling material and the thickness of the tablet can be adjusted. Transmission system in the closed tank at the bottom of the machine body, is a completely separate independent components, not pollution each other, and make the drive shaft infiltrating in the oil pool, to get sufficient lubrication, reducing noise and abrasion. Equipped with suction device, can suppress the indoor flying dust absorption clean. Welcome everybody to choose.