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5 Gallon Water Filling Machine

The Core Equipment for Bottled Water Production

2025-04-03

1. Equipment Overview

The 5-gallon water filling machine is a core component of the bottled water production line. Its design aims to meet the requirements of large-scale and high-efficiency production. The equipment is relatively easy to operate. Usually, only 1 - 2 workers are required to complete the operation process, which greatly saves labor costs. It integrates multiple functions such as disinfection, rinsing, cap sleeving, and capping. Driven by a three-phase AC 380V power supply, it has good versatility and is suitable for production scenarios of different scales, including towns, industrial and mining enterprises, and individual units. Through a reliable microcomputer control system and pneumatic control system, the 5-gallon water filling machine can ensure that the entire filling process is carried out in a closed environment, effectively avoiding secondary pollution of purified water or mineral water during the filling process. It truly achieves aseptic filling, providing consumers with safe and hygienic bottled drinking water.

2. Technical Parameters

Number of Filling Heads : Commonly, there are 2 filling heads. The number of filling heads varies for different models of filling machines. The more filling heads there are, the greater the filling volume per unit time and the higher the production efficiency.

Power Supply Voltage : Generally, it is AC 380V/50Hz ±15°. A stable power supply is the foundation for the normal operation of the equipment. Ensuring that the voltage fluctuates within the specified range can guarantee the stable performance of the equipment and the filling accuracy.

Operating Pressure : Usually, it ranges from 0.6 to 0.8MPa. An appropriate operating pressure ensures that water can be filled into the barrels smoothly and quickly. At the same time, it also poses requirements for the sealing performance of the equipment.

Rated Current : For example, 20A. The current parameter affects the power consumption during the operation of the equipment and the selection and service life of electrical components.

Overall Dimensions : Taking a common model as an example, its overall dimensions are 2860×980×1500 (mm). The overall dimensions of the equipment are related to the spatial layout of the production site. Enterprises need to select a filling machine of the appropriate specification according to the size of their own production site.

Production Capacity : The production capacities of different models of 5-gallon water filling machines vary. For example, 150 barrels per hour or 120 barrels per hour. Enterprises can select a filling machine with a matching production capacity according to market demand and their own plans.

Total Machine Power : For a certain model, the total machine power is 2.15kW (washing barrel water pump 0.37kW×5 + 0.3kW). The power directly affects the electricity cost of the enterprise. Energy consumption needs to be comprehensively considered when selecting equipment.

3. Structural Features

Bottle Washing Section

Bottle Washing Transmission Mechanism : Responsible for driving the movement of water barrels among the bottle washing stations, ensuring that the barrels can be sequentially cleaned in different processes. The stability of the transmission directly affects the bottle washing effect.

Bottle Holder : Used to carry water barrels. It plays a role in positioning and supporting during the cleaning and subsequent processes, ensuring the stability of the barrels during operation.

Potion Bottle Washing Water Pump : Draws the washing and disinfecting potion from the potion tank and sprays it onto the barrels through nozzles and other devices to remove dirt and bacteria inside the barrels.

Potion Tank : Stores the washing and disinfecting potion. It is usually made of corrosion-resistant materials to ensure the stable chemical properties of the potion. At the same time, it needs to have a certain capacity to meet the needs of continuous production.

Pure Water Bottle Washing Water Pump : Draws pure water to further rinse the barrels after they have been washed with the potion, removing residual potion and impurities, and ensuring that the barrels are clean and pollution-free.

Transmission Chain : Connects the transmission components of each bottle washing station. The movement of the chain drives the flow of barrels among different stations. Its material and strength need to meet the requirements of long-term and high-load operation.

Filling Section

Filling Cylinder : Controls the lifting of the filling valve through the telescopic movement of the cylinder to achieve the filling operation of water barrels. The response speed and accuracy of the cylinder affect the filling efficiency and accuracy.

Filling Valve : Contacts the water barrels directly and is responsible for filling water into the barrels. Its design needs to ensure a stable and uniform filling flow rate. At the same time, it should have good sealing performance to prevent water leakage.

Cap Sorting Motor and Cap Sleeving Device : The cap sorting motor drives the cap sorter to work, arranging the disordered caps in an orderly manner, facilitating the cap sleeving device to accurately sleeve the caps onto the mouths of the filled water barrels.

Capping Cylinder and Capping Device : The capping cylinder pushes the capping device to tightly press the caps onto the mouths of the barrels, ensuring a tight fit between the caps and the barrel mouths, preventing water leakage and pollution. The capping force needs to be moderate, ensuring both the sealing effect and avoiding damage to the barrel mouths and caps.

Electrical Control Section : Composed of a microcomputer programmer and an electrical control box. The microcomputer programmer is responsible for writing and storing the operation program of the equipment, controlling the action sequence and time of each component of the equipment according to the set parameters. The electrical control box centrally controls and protects the electrical system of the equipment, including the start and stop of motors, the reception and processing of sensor signals, etc. It is the core control part for the automated operation of the equipment.

Pneumatic Control Section : Composed of cylinders, pneumatic solenoid valves, and a pneumatic electrical control box. The cylinders, as actuators, achieve various actions through the action of compressed air, such as the flipping of water barrels during bottle washing, the lifting of filling valves, and capping. Pneumatic solenoid valves are used to control the flow direction and on-off of compressed air, thereby controlling the actions of the cylinders. The pneumatic electrical control box centrally controls and manages the entire pneumatic system, ensuring the stable operation of pneumatic components.

4. Working Principle

Bottle Washing Stage : The bottle washing process generally goes through multiple stations. First, at the first station, chlorine dioxide (ClO₂) solution is used to wash and disinfect the water barrels. This solution has strong oxidizing properties and can effectively kill bacteria and viruses inside the barrels. The disinfection time can usually be adjusted according to actual conditions, for example, set to 12s. Then, at the second and third stations, further rinsing with clean water may be carried out to remove residual disinfection potion and dirt. At the fourth station, pure water is used for cleaning to further improve the cleanliness of the barrels. The cleaning time can also be adjusted as needed. At the fifth station, the residual water in the rinsed barrels is drained to ensure that the barrels entering the filling stage are dry and clean.

Filling Stage : The dried empty barrels are transported to the filling position through the chain conveyor. They fall onto the barrel - supporting mechanism. The barrel - supporting mechanism quickly straightens the empty barrels. At the same time, the filling valve is accurately pressed against the barrel mouth under the push of the cylinder, and the filling operation begins. The filling time can be flexibly adjusted according to the flow rate of the filling pump to ensure the accurate filling volume of each barrel. During the filling process, technologies such as liquid - level sensing are usually used to monitor the filling liquid level in real-time and ensure the filling accuracy.

Capping Stage : After filling, the filled barrels are sent to the cap sorter by the out - barrel transmission mechanism for cap sleeving. The cap sorter arranges the disordered caps and accurately sleeves them onto the barrel mouths through vibration and other methods. The barrels with sleeved caps are then transported to the capping mechanism. At this time, the capping cylinder pushes the capping device to tightly press the caps onto the barrel mouths, completing the sealing operation. Thus, a complete washing and filling cycle is completed.

5. Assembly Line Matching

To further improve the filling efficiency of 5-gallon bottled water and meet the large - scale production needs of large - scale water plants, 5-gallon water filling machines usually need to be equipped with other equipment to form an automated filling assembly line. Typical assembly line equipment includes:

Automatic Cap Remover : Automatically removes the original caps from the barrel mouths before the barrels enter the bottle washing process, preparing for subsequent cleaning and filling.

Automatic Barrel Brushing Machine : Brushes the outer surface of the water barrels to remove dirt and impurities on the barrel surface, improving the overall cleanliness of the barrels.

Automatic Barrel Loading Machine : Automatically transports and places empty barrels onto the conveyor chain of the filling machine, realizing the automation of the barrel loading process and reducing manual operation intensity.

Automatic Rinsing and Disinfection Equipment : Cooperates with the bottle washing section of the filling machine to further strengthen the rinsing and disinfection effect on the barrels, ensuring that the barrels are sterile.

Automatic Cap Sorting, Sleeving, and Capping Equipment : Cooperates with the filling section of the filling machine to improve the efficiency and accuracy of cap sorting, sleeving, and capping.

Light Inspection Box : Used to detect whether there are impurities, bubbles, and other quality problems in the filled water barrels, ensuring the quality of the products leaving the factory.

Automatic Heat Shrink Wrapping Machine : Performs heat shrink wrapping on the filled and capped water barrels, playing a role in protecting the barrels and identifying products.

Automatic Bagging Machine (with Conveyor Belt) : Bags the bottled water, further enhancing the protective performance of the products, and transports the packaged finished products to the subsequent processes through the conveyor belt.

The 5-gallon water filling machine, with its characteristics of high efficiency, accuracy, and hygiene in filling, as well as a complete set of assembly line supporting equipment, has become an indispensable key equipment in the modern bottled drinking water production industry. It plays an important role in ensuring the drinking water safety of consumers and meeting market demands.

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