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E-mail
yuanyingltt@163.com
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18621821462
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No. 84 Jinwen Road, Zhuqiao Town, Pudong New Area, Shanghai
Shanghai Yuanying Packaging Machinery Equipment Co., Ltd
Analysis of the process principle of semi-automatic suppository filling machine
Date: 2025-07-22Read: 7
The process principle of the semi-automatic suppository filling machine mainly includes the following core steps:
1、 Filling principle
1. Measurement infusion: The medication is stored in a material bucket with a stirring and constant temperature system, and is transported to the measurement pump chamber through a peristaltic pump. The specially designed sealed piston is filled by gravity and pressed downwards, generating high pressure to accurately inject viscous medication into the suppository shell. The filling amount can be precisely adjusted and there is basically no leakage.
2. Isobaric filling method: using a pressure gravity design, inert gas with the same pressure as the storage tank is filled into the suppository shell, and the liquid is filled by the self weight flow of the medicine. This method can reduce the gas escape of gas containing drugs and avoid the impact of filling bubbles on accuracy.
2、 Cooling and shaping
The filled suppository enters the continuous cooling system and spirals around from the outside to the inside through a snail shaped cooling disc before being removed in the opposite direction. The air cooling unit quickly solidifies the liquid medicine, achieving liquid-solid conversion and efficient cooling in a small space.
3、 Sealing and cutting
1. Heat sealing process: Solid suppositories are sequentially softened by preheating molds, sealed by sealing molds, and printed with batch numbers by coding molds.
2. Precision cutting: The triangular knife cuts off excess material at the bottom edge, the dotted knife presses the easily torn line, the rolling cutter trims the upper edge, and finally automatically cuts and divides the board according to the set number of particles.
4、 Key technical features
1. Anti pollution design: The material contact parts are made of 316L stainless steel, which complies with GMP standards.
2. Adaptive control: equipped with filling volume detection, color correction, and automatic removal of deflated bubbles to ensure product consistency.
3. Circulating system: The remaining liquid medicine is returned to the material bucket for recycling through the return pump, reducing waste.
Note: Vacuum sealing technology (such as NEST integrated machine application) can further reduce bubble generation and protect the integrity of the rubber plug coating, but it is an optional extension process.
