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Nantong Bolang Machinery Technology Co., Ltd
The principle and application of paste filling and sealing machine
Date: 2025-07-30Read: 26
The paste filling and sealing machine achieves precise packaging of paste like or semi-solid products through an automated process. The working principle is as follows:
1. Filling system:
(1) Paste supply: The paste is transported to the storage tank through the feeding system to ensure continuous supply.
(2) Container positioning: The mechanical device precisely aligns bottles, hoses, and other containers with the filling port.
(3) Quantitative control: The filling valve controls the flow rate and filling volume of the paste by adjusting the valve switch, and the accuracy can reach the preset standard.
(4) Process monitoring: Real time detection of flow rate, filling volume, and container position to ensure consistency in filling.
2. Sealing system:
(1) Hot press sealing: The heating element melts plastic or composite film materials and applies pressure to bond them (the temperature needs to be precisely controlled at 120-200 ℃).
(2) Electromagnetic induction sealing: Generate eddy current hot melt on sealing materials containing metal layers (such as aluminum foil for medicine bottles), and complete sealing within 0.1-0.5 seconds.
(3) Vacuum sealing: Heat seal after removing air from the packaging to reduce oxidation (suitable for food preservation).
(4) Other technologies, such as threaded caps (compression sealing gaskets) or pneumatic compression seals, are suitable for different container requirements.
The paste filling and sealing machine is widely used in cosmetics (cream, skincare products), pharmaceuticals (cream, ointment), food (sauce, honey), and chemical packaging. It mainly has the following core advantages:
1. Efficient production: Automated filling and sealing integration significantly improves efficiency and reduces labor costs.
2. Precise control: Ensure consistent filling volume (such as an error of ≤ 1% for each hose), reducing waste.
3. Flexible adaptation: compatible with various containers (bottles, tubes, cans) and paste viscosity (semi-solid to liquid).
4. Health protection: Reduce manual contact and lower the risk of pollution.
5. Data traceability: Advanced models record production parameters, supporting quality control and product traceability.
