-
E-mail
583392650@qq.com
-
Phone
13862960508
-
Address
No. 155 Gongmao Road, Haimen City, Jiangsu Province
Nantong Bolang Machinery Technology Co., Ltd
Working principle and structural components of oral liquid filling production line
Date: 2025-12-23Read: 30
The oral liquid filling production line is a core automation equipment in the pharmaceutical and food industries, focusing on efficiently and accurately filling liquid products (such as drugs, health products, or nutrient solutions) into containers, and completing subsequent sealing and quality testing. Its design aims to meet high hygiene standards and production efficiency requirements, achieve full process automation through modular structure, reduce human intervention, and ensure product consistency and safety.
1、 Overview of Working Principle
The working principle of the oral liquid filling production line is based on the logical chain of "material conveying precise filling sealing guarantee quality screening". Each functional module is linked through a synchronous transmission mechanism (such as conveyor belt, servo motor) to ensure consistent production rhythm and avoid efficiency loss caused by process disconnection. The specific process includes:
1Pre treatment of empty bottlesThe disorderly stacking of containers is sorted and guided by vibration, and transformed into a conveying state with uniform direction and spacing, ensuring precise docking with the filling station.
2Quantitative fillingAccording to the characteristics of oral liquid, such as viscosity and particle content, piston or peristaltic pump filling technology is used
Piston fillingSuitable for low viscosity liquids, the piston is driven by a cylinder to move back and forth in the material cylinder, sucking and squeezing the liquid medicine to the filling head, with high dosage accuracy and anti drip.
Peristaltic pump fillingSuitable for high viscosity or particle containing liquids, negative pressure is formed by squeezing the hose with a roller to suction the medicine solution, avoiding contamination and adjusting flexibly.
3Sealing treatmentAfter filling, the container is sealed with a sealing system (such as aluminum cap pressure plug or screw cap) to ensure leakage and contamination prevention. Some production lines integrate label sorting, automatically match labels and paste them.
4quality inspectionScreen the filling volume, sealing integrity, and label accuracy through visual or sensor systems to eliminate non-conforming products.
2、 Detailed explanation of structural components
The oral liquid filling production line consists of four core functional modules, which work together to achieve efficient production:
1Bottle sorting system
functionOrganize and transport the messy empty bottles in an orderly manner to the filling station, ensuring that the bottle mouth is facing upwards and the spacing is uniform.
key componentVibration hopper, spiral track, guide baffle, bottle wheel.
working principleAfter the empty bottles are poured into the hopper, they rise along the spiral track through high-frequency micro vibration, guide the baffle to remove bottles in the wrong direction, and adjust the spacing of the bottle wheel to 5-10cm to avoid leakage or wrong filling.
2Filling System
functionTo achieve quantitative distribution of medication, the core requirements are no bubbles, no dripping, and precise dosage.
key componentInfusion pump, piping system, metering disc, filling head, anti drip valve.
working principleThe liquid is pumped or gravity transported from the storage tank to the filling head, and the flow rate is controlled by the metering disk (piston type through stroke adjustment, peristaltic pump through motor speed adjustment). The filling head is aligned with the bottle mouth to ensure stable liquid level.
3Sealing system
functionEnsure the sealing performance of the container to prevent leakage and contamination.
key component: Plug pressing device, capping machine, aluminum cap oscillation hopper, capping head.
working principleTwo step operation - first insert the rubber stopper to fix the bottle mouth, and then press the aluminum cap or tighten the plastic cap; The capping head tracks the rotation of the bottle mouth with a flexible blade to ensure a secure seal.
4Detection and auxiliary system
functionMonitor key indicators during the production process (such as filling volume, sealing, label position) and link them with subsequent processes.
key componentVisual inspection unit, weight sensor, PLC control system, operation panel.
working principleReal time data collection by sensors, PLC analysis and feedback to the executing mechanism (such as removing non-conforming products); The operation panel supports parameter settings and automated control, improving production consistency.
3、 Other optional modules (according to production requirements)
Cleaning systemIntegrated ultrasonic bottle washing machine, which cleans the inner and outer walls of the container with high-pressure water and air to ensure sterile conditions.
Label sorting systemAutomatically identify container types and paste corresponding labels to improve packaging efficiency.
Linkage packaging lineIntegrate with capping, coding, and packaging equipment to achieve intelligent management throughout the entire process.
Through the synergy of the above structure and working principle, the oral liquid filling production line has become an important equipment in modern production, continuously promoting the industry's development towards efficiency, precision, and intelligence.