The motor serves as the power source. After startup, it transmits power to the rotor of the rotary pump through transmission devices such as couplings. The rotational speed of the motor can be adjusted by the control system to meet different filling requirements. For example, increasing the speed enables rapid filling, while reducing the speed ensures filling accuracy.
Driven by the motor, the rotor rotates with its central axis at a certain angle to the axis of the pump. During rotation, the volume of the sealed chamber formed between the rotor and the stator constantly changes. At certain positions, the volume of the chamber increases, creating negative pressure and generating suction, which draws the pet food materials from the storage tank into the chamber. As the rotor continues to rotate, the volume of the chamber gradually decreases, and the materials are pushed towards the outlet of the pump under extrusion, thus achieving material transportation.
It is equipped with measurement devices such as flow meters or load cells. The flow meter monitors the material flow rate in real - time. When the preset flow value is reached, the control system sends a signal to control the rotary pump to stop or decelerate. The load cell determines the filling volume by measuring the weight change of the container before and after filling, which is suitable for high - precision filling requirements. The control system receives signals from components such as measurement devices and sensors, and controls the execution components such as motors and valves according to preset programs and parameters, realizing the automation of the entire filling process.
The materials transported by the rotary pump are connected to the filling head through pipelines. The filling head is matched with the opening of the container to accurately fill the materials into the container. At the same time, the filling machine adopts an anti - drip design. For example, a suction - back device is set at the filling head. After filling, the materials remaining in the filling head are sucked back to avoid dripping outside the container or onto the production line.
Equipped with a servo system, it can accurately control the filling volume, ensuring the accuracy and consistency of each filling, reducing product errors, and helping to control costs and ensure the quality of pet food.
It can fill various forms and properties of pet food materials, such as liquids, pastes, sauces, and pastes containing soft particles, well meeting the diverse product form requirements of pet food.
It can significantly improve production efficiency, meet the needs of large - scale pet food production, help enterprises increase production volume, and enhance economic benefits.
All flow - through parts are made of 304 stainless steel, which has good corrosion resistance and hygiene. The materials are not contaminated, meeting strict pet food hygiene standards and ensuring the safety and quality of pet food.
The structural design of the cam - type rotary pump enables stable material conveyance, reduces pulsation, avoids damage to the physical properties of pet food, and maintains the original quality of pet food. For example, it prevents the layering or denaturation of sauce - type pet food.
It does not require additional auxiliary equipment, can suck in materials by itself, is convenient to operate, and reduces the complexity of the equipment and the use cost.
The structure is relatively simple without complex internal structures, making it easy to clean. This is conducive to quickly changing the filling materials, reducing cross - contamination, and facilitating equipment cleaning and switching when producing different types of pet food.
Manufacturers usually support customization. They can carry out personalized design and adjustment according to customers' special needs and production environments, better meeting the requirements of different pet food production lines.
For the filling of pet dry foods such as pet biscuits and granular pet feeds, by adjusting the filling volume and speed, a fixed amount of dry food can be accurately filled into packaging bags or containers of different specifications.
For wet pet foods such as pet cans and meat pastes, the servo rotary - pump filling machine can stably transport and fill, avoiding excessive extrusion or damage to the materials during the filling process and ensuring the appearance and taste of the products.
For pet liquid vitamins, mineral supplements, etc., high - precision filling equipment is required to ensure the accurate content in each bottle or bag. The servo rotary - pump filling machine can meet this requirement.
