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E-mail
117822813@qq.com
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Phone
18662899262
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Address
No. 999-9 Zhonghai Road, Haimen District, Nantong City, Jiangsu Province
Haimen Yuanda Pharmaceutical Machinery Co., Ltd
Process principle of linear sealing machine
Date: 2025-06-13Read: 5
The linear sealing machine is a device that integrates quantitative filling and sealing functions on the same production line. Its process principle is mainly based on automated conveying, precise quantitative filling, and synchronous sealing technology. The specific process is as follows:
1、 Core process flow
1. Container transportation and positioning
Empty bottles enter the filling station through a conveyor belt and are clamped and fixed by a pneumatic bottle stop mechanism to ensure precise filling position.
Using photoelectric sensors to detect the signal of the bottle being in place, triggering subsequent actions (skipping filling if there are no bottles).
2. Quantitative filling process
Filling method: commonly used plunger pumps or flow meters control liquid volume, and PLC automatically adjusts parameters based on liquid density and temperature to ensure accuracy error ≤ 1%.
Anti drip design: The filling needle penetrates into the bottom of the bottle and slowly rises for filling, reducing the generation of bubbles. After filling, the residual liquid is automatically sucked back.
3. Synchronous sealing technology
Sealing type: According to the requirements of the container, screw cap, capping or wire drawing sealing can be used (such as ampoules).
Key control: Accurate adjustment of flame temperature (wire drawing sealing) or torque (screw cap) is required during sealing to avoid problems such as bubbles and loose sealing.
4. Integrated continuous operation
The filling and sealing stations are arranged in a straight line, and the bottles are directly transitioned through the conveyor belt to reduce intermittent waiting time.
Advanced models integrate blowing, filling, and sealing functions to achieve full process automation of "injection blowing filling sealing".
2、 Technical characteristics of equipment
1. Wide applicability: compatible with round bottles, square bottles, and irregular bottles (10-1000ml), suitable for viscous or low viscosity liquids in daily chemical, pharmaceutical, food, and other industries.
2. Intelligent control: PLC+touch screen control system, preset parameters can quickly switch between different specifications for production.
3. Sanitary design: The material contact parts are made of USU304/316L stainless steel, which complies with GMP standards.
3、 Key points of quality control
1. Filling accuracy: Before starting up, it is necessary to empty the bubbles in the pump and regularly check the sealing ring and valve to prevent leakage.
2. Sealing stability: relies on stable hydrogen oxygen flame pressure (wire drawing sealing) or pressure calibration of screw cap mechanism to monitor flame uniformity in real time.
Application scenario: Suitable for pharmaceutical ampoules, daily chemical bottles, food seasoning bottles and other fields that require high sealing packaging, efficiently replacing split type filling and sealing equipment.
