What is the principle of filling machine?

Filling machine is a kind of equipment used to fill liquid, powder or granular substances into different containers. It is widely used in various industries, such as food, medicine, cosmetics, chemical industry and so on. The principle of filling machine is based on a series of working steps and motion modes. The principle and working process of filling machine will be introduced in detail below.

I. Working principle of filling machine The filling machine is mainly composed of four parts: feeding device, filling device, sealing device and control system. Among them, the feeding device is responsible for feeding the materials to be filled into the filling device, which fills the materials into the container quantitatively, and the sealing device seals the container, and the whole working process is controlled by the control system.

Second, the working principle of the feeding device. The feeding device is a key component for feeding the materials to be filled into the filling device. Common feeding devices include top feeder and vacuum sucker.

Top feeder: The top feeder pushes the materials through the container filled with materials by gravity or air pressure, and transports them to the filling machine. It can be divided into automatic feeding and manual feeding.

Vacuum suction device: The vacuum suction device sucks materials into the suction tube by using the negative pressure principle and high-speed air flow, and then transports them to the filling device through the pipeline. Vacuum sucker can realize more accurate material control and measurement.

Third, the working principle of the filling device The filling device is the part that accurately fills the material into the container, and it is also the core component of the filling machine. Commonly used filling devices include metering filling device, cam filling device and flow control filling device.

Metering and filling device: The metering and filling device accurately measures the material according to its capacity or weight, and then loads the accurate material into the container through programming or manual operation. Metering devices usually include metering pumps, metering tanks, cylinders and valves.

Cam filling device: The cam filling device controls the lowering, lifting and weaning of the filling head through the cam mechanism. The motion track of the cam device can be adjusted according to the requirements to realize the filling of different containers.

Flow control filling device: the flow control filling device realizes filling by calculating the flow rate and flow rate of liquid and controlling the adjustment switch door. It is usually equipped with high-precision flow control sensor and PLC control system.

Fourth, the working principle of the sealing device is mainly responsible for sealing the container to maintain the safety of the material and prevent leakage. Commonly used sealing devices include screw cap sealing machine, coating sealing machine and rotary sealing machine.

Screw cap sealing machine: Screw cap sealing machine fastens the screw cap on the container automatically or manually to ensure the tightness of the filled materials.

Coating and sealing machine: the coating and sealing machine coats a layer of sealant or glue at the opening of the container, and then tightly seals the container.

Rotary sealing machine: the rotary sealing machine rotates the container so that the opening of the container corresponds to the sealing nozzle, and then seals it by using the principle of heat sealing or pressure sealing.

V. Working principle of control system The control system is the brain of the whole filling machine, which is responsible for controlling the whole workflow and ensuring that each step can be carried out smoothly. Commonly used control systems include PLC control system and touch screen control system.

PLC control system: Based on the programmable logic controller, the PLC control system controls the feeding, filling and sealing operations by setting the workflow and parameters of the filling machine. The PLC control system has the advantages of high flexibility and reliability.

Touch screen control system: The touch screen control system operates and controls by touching the screen, and realizes the setting and adjustment of various parameters and workflow of the filling machine. It is intuitive and simple.

VI. Workflow of Filling Machine The workflow of filling machine generally includes the following steps: feeding, quantitative filling, sealing and discharging.

Feeding: the materials to be filled are sent to the filling device through the feeding device. If it is a liquid material, it can be fed by a top feeder or a vacuum sucker. If it is a powdery or granular material, it can be sent to the filling device through an oscillator or a screw conveyor.

Quantitative filling: the filling device carries out accurate quantitative filling on each container according to the set filling capacity. The filling device can adopt metering filling device, cam filling device or flow control filling device as required.

Sealing: after filling, the container enters the sealing device for sealing operation. The specific sealing method can choose the appropriate sealing device according to the characteristics and use requirements of the container.

Discharge: after sealing, the container filled with materials is transported to the discharge port by conveyor or conveyor belt, and then the subsequent processing such as packaging and label printing is carried out.

The principle of the filling machine is that the material to be filled is sent to the filling device through the feeding device, and the filling device fills the material into the container quantitatively. Then the container is sealed by the sealing device, and the whole working process is controlled by the control system. Filling machine plays an important role in modern industry, which can improve production efficiency, ensure product quality and reduce labor costs, and provide strong support for the development of various industries.